Jean-Christophe Toussaint

Asymmetric hysteresis of Néel caps in flux-closure magnetic dots (2010)

Fruchart, Olivier, Rougemaille, Nicolas, Bendounan, Azzedine, Toussaint, Jean-Christophe, Belkhou, Rachid, Tian, Yuan, ...

We investigated with XMCD-PEEM magnetic imaging the magnetization reversal processes of Néel caps inside Bloch walls in self-assembled, micron-sized Fe(110) dots with flux-closure magnetic state. In...

Dimensionality cross-over in magnetism: from domain walls (2D) to vortices (1D) (2010)

Masseboeuf, Aurélien, Fruchart, Olivier, Toussaint, Jean-Christophe, Kritsikis, Evaggelos, Buda-Prejbeanu, L. D., Cheynis, Fabien, ...

Dimensionality cross-over is a classical topic in physics. Surprisingly it has not been searched in micromagnetism, which deals with objects such as domain walls (2D) and vortices (1D). We predict by...

Asymmetric hysteresis of Néel caps in flux-closure magnetic dots (2010)

Fruchart, Olivier, Rougemaille, Nicolas, Bendounan, Azzedine, Toussaint, Jean-Christophe, Belkhou, Rachid, Tian, Yuan, ...

We investigated with XMCD-PEEM magnetic imaging the magnetization reversal processes of Néel caps inside Bloch walls in self-assembled, micron-sized Fe(110) dots with flux-closure magnetic state. In...

Dimensionality cross-over in magnetism: from domain walls (2D) to vortices (1D) (2010)

Masseboeuf, Aurélien, Fruchart, Olivier, Toussaint, Jean-Christophe, Kritsikis, Evaggelos, Buda-Prejbeanu, L. D., Cheynis, Fabien, ...

Dimensionality cross-over is a classical topic in physics. Surprisingly it has not been searched in micromagnetism, which deals with objects such as domain walls (2D) and vortices (1D). We predict by...

Asymmetric hysteresis of N\'eel caps in flux-closure magnetic dots (2009)

Fruchart, Olivier, Rougemaille, Nicolas, Bendounan, Azzedine, Toussaint, Jean-Christophe, Belkhou, Rachid, Tian, Yuan, ...

We investigated with XMCD-PEEM magnetic imaging the magnetization reversal processes of N\'eel caps inside Bloch walls in self-assembled, micron-sized Fe(110) dots with flux-closure magnetic state....

Tunable magnetic properties of arrays of Fe(110) nanowires grown on kinetically-grooved W(110) self-organized templates (2009)

Borca, Bogdana, Fruchart, Olivier, Kritsikis, Evaggelos, Cheynis, Fabien, Rousseau, Anthony, David, Philippe, ...

We report a detailed magnetic study of a new type of self-organized nanowires disclosed briefly previously [B. Borca et al., Appl. Phys. Lett. 90, 142507 (2007)]. The templates, prepared on sapphire...

Tunable magnetic properties of arrays of Fe(110) nanowires grown on kinetically-grooved W(110) self-organized templates (2009)

Borca, Bogdana, Fruchart, Olivier, Kritsikis, Evaggelos, Cheynis, Fabien, Rousseau, Anthony, David, Philippe, ...

We report a detailed magnetic study of a new type of self-organized nanowires disclosed briefly previously [B. Borca et al., Appl. Phys. Lett. 90, 142507 (2007)]. The templates, prepared on sapphire...

How many bits may fit in a single magnetic dot? XMCD-PEEM evidences the switching of N\'eel caps inside Bloch domain walls (2009)

Cheynis, Fabien, Masseboeuf, Aurélien, Fruchart, Olivier, Rougemaille, Nicolas, Toussaint, Jean-Christophe, Belkhou, Rachid, ...

Data storage relies on the handling of two states, called bits. The market of mass storage is currently still dominated by magnetic technology, hard disk drives for the broad public and tapes for...

Dimensionality cross-over in magnetism: from domain walls (2D) to vortices (1D) (2009)

Masseboeuf, Aurélien, Fruchart, Olivier, Toussaint, Jean-Christophe, Kritsikis, Evaggelos, Buda-Prejbeanu, L. D., Cheynis, Fabien, ...

Dimensionality cross-over is a classical topic in physics. Surprisingly it has not been searched in micromagnetism, which deals with objects such as domain walls (2D) and vortices (1D). We predict by...

Lorentz microscopy mapping for domain walls structure study in L1$_0$ FePd thin films (2009)

Masseboeuf, Aurélien, Gatel, Christophe, Bayle-Guillemaud, Pascale, Marty, Alain, Toussaint, Jean-Christophe

Thin film alloys with perpendicular anisotropy were studied using Lorentz Transmission Electron Microscopy (LTEM). This work focuses on the configuration of domain walls and demonstrates the...

Contacting individual Fe(110) dots in a single electron-beam lithography step (2009)

Cheynis, Fabien, Haas, Helge, Fournier, Thierry, Ranno, Laurent, Wernsdorfer, Wolfgang, Fruchart, Olivier, ...

We report on a new approach, entirely based on electron-beam lithography technique, to contact electrically, in a four-probe scheme, single nanostructures obtained by self-assembly. In our procedure,...

Contacting individual Fe(110) dots in a single electron-beam lithography step (2009)

Cheynis, Fabien, Haas, Helge, Fournier, Thierry, Ranno, Laurent, Wernsdorfer, Wolfgang, Fruchart, Olivier, ...

We report on a new approach, entirely based on electron-beam lithography technique, to contact electrically, in a four-probe scheme, single nanostructures obtained by self-assembly. In our procedure,...

Tunable magnetic properties of arrays of Fe(110) nanowires grown on kinetically-grooved W(110) self-organized templates (2009)

Borca, Bogdana, Fruchart, Olivier, Kritsikis, Evaggelos, Cheynis, Fabien, Rousseau, Anthony, David, Philippe, ...

We report a detailed magnetic study of a new type of self-organized nanowires disclosed briefly previously [B. Borca et al., Appl. Phys. Lett. 90, 142507 (2007)]. The templates, prepared on sapphire...

Controlled switching of Néel caps in flux-closure magnetic dots (2009)

Cheynis, Fabien, Masseboeuf, Aurélien, Fruchart, Olivier, Rougemaille, Nicolas, Toussaint, Jean-Christophe, Belkhou, Rachid, ...

While magnetic hysteresis usually considers magnetic domains, the switching of the core of magnetic vortices has recently become an active topic. We considered Bloch domain walls, which are known to...

Controlled switching of Néel caps in flux-closure magnetic dots (2009)

Cheynis, Fabien, Masseboeuf, Aurélien, Fruchart, Olivier, Rougemaille, Nicolas, Toussaint, Jean-Christophe, Belkhou, Rachid, ...

While magnetic hysteresis usually considers magnetic domains, the switching of the core of magnetic vortices has recently become an active topic. We considered Bloch domain walls, which are known to...

Contacting individual Fe(110) dots in a single electron-beam lithography step (2009)

Cheynis, Fabien, Haas, Helge, Fournier, Thierry, Ranno, Laurent, Wernsdorfer, Wolfgang, Fruchart, Olivier, ...

We report on a new approach, entirely based on electron-beam lithography technique, to contact electrically, in a four-probe scheme, single nanostructures obtained by self-assembly. In our procedure,...

Controlled switching of Néel caps in flux-closure magnetic dots (2009)

Cheynis, Fabien, Masseboeuf, Aurélien, Fruchart, Olivier, Rougemaille, Nicolas, Toussaint, Jean-Christophe, Belkhou, Rachid, ...

While magnetic hysteresis usually considers magnetic domains, the switching of the core of magnetic vortices has recently become an active topic. We considered Bloch domain walls, which are known to...

Controlled switching of Néel caps in flux-closure magnetic dots (2009)

Cheynis, Fabien, Masseboeuf, Aurélien, Fruchart, Olivier, Rougemaille, Nicolas, Toussaint, Jean-Christophe, Belkhou, Rachid, ...

While magnetic hysteresis usually considers magnetic domains, the switching of the core of magnetic vortices has recently become an active topic. We considered Bloch domain walls, which are known to...

Tunable magnetic properties of arrays of Fe(110) nanowires grown on kinetically-grooved W(110) self-organized templates (2009)

Borca, Bogdana, Fruchart, Olivier, Kritsikis, Evaggelos, Cheynis, Fabien, Rousseau, Anthony, David, Philippe, ...

We report a detailed magnetic study of a new type of self-organized nanowires disclosed briefly previously [B. Borca et al., Appl. Phys. Lett. 90, 142507 (2007)]. The templates, prepared on sapphire...

Tunable magnetic properties of arrays of Fe(110) nanowires grown on kinetically-grooved W(110) self-organized templates (2009)

Borca, Bogdana, Fruchart, Olivier, Kritsikis, Evaggelos, Cheynis, Fabien, Rousseau, Anthony, David, Philippe, ...

We report a detailed magnetic study of a new type of self-organized nanowires disclosed briefly previously [B. Borca et al., Appl. Phys. Lett. 90, 142507 (2007)]. The templates, prepared on sapphire...

Lorentz microscopy mapping for domain walls structure study in L1$_0$ FePd thin films (2009)

Masseboeuf, Aurélien, Gatel, Christophe, Bayle-Guillemaud, Pascale, Marty, Alain, Toussaint, Jean-Christophe

Thin film alloys with perpendicular anisotropy were studied using Lorentz Transmission Electron Microscopy (LTEM). This work focuses on the configuration of domain walls and demonstrates the...

Lorentz microscopy mapping for domain walls structure study in L1$_0$ FePd thin films (2009)

Masseboeuf, Aurélien, Gatel, Christophe, Bayle-Guillemaud, Pascale, Marty, Alain, Toussaint, Jean-Christophe

Thin film alloys with perpendicular anisotropy were studied using Lorentz Transmission Electron Microscopy (LTEM). This work focuses on the configuration of domain walls and demonstrates the...

Dimensionality cross-over in magnetism: from domain walls (2D) to vortices (1D) (2009)

Masseboeuf, Aurélien, Fruchart, Olivier, Toussaint, Jean-Christophe, Cheynis, Fabien, Bayle-Guillemaud, Pascale, Marty, A.

Dimensionality cross-over is a classical topic in physics. Surprisingly it has not been searched in micromagnetism, which deals with objects such as domain walls (2D) and vortices (1D). We predict by...

Dimensionality cross-over in magnetism: from domain walls (2D) to vortices (1D) (2009)

Masseboeuf, Aurélien, Fruchart, Olivier, Toussaint, Jean-Christophe, Cheynis, Fabien, Bayle-Guillemaud, Pascale, Marty, A.

Dimensionality cross-over is a classical topic in physics. Surprisingly it has not been searched in micromagnetism, which deals with objects such as domain walls (2D) and vortices (1D). We predict by...

How many bits may fit in a single magnetic dot? XMCD-PEEM evidences the switching of Néel caps inside Bloch domain walls (2009)

Cheynis, Fabien, Masseboeuf, Aurélien, Fruchart, Olivier, Rougemaille, Nicolas, Toussaint, Jean-Christophe, Belkhou, Rachid, ...

Data storage relies on the handling of two states, called bits. The market of mass storage is currently still dominated by magnetic technology, hard disk drives for the broad public and tapes for...

How many bits may fit in a single magnetic dot? XMCD-PEEM evidences the switching of Néel caps inside Bloch domain walls (2009)

Cheynis, Fabien, Masseboeuf, Aurélien, Fruchart, Olivier, Rougemaille, Nicolas, Toussaint, Jean-Christophe, Belkhou, Rachid, ...

Data storage relies on the handling of two states, called bits. The market of mass storage is currently still dominated by magnetic technology, hard disk drives for the broad public and tapes for...

Asymmetric hysteresis of Néel caps in flux-closure magnetic dots (2009)

Fruchart, Olivier, Rougemaille, Nicolas, Bendounan, Azzedine, Toussaint, Jean-Christophe, Belkhou, Rachid, Tian, Yuan, ...

We investigated with XMCD-PEEM magnetic imaging the magnetization reversal processes of Néel caps inside Bloch walls in self-assembled, micron-sized Fe(110) dots with flux-closure magnetic state. In...

Tunable magnetic properties of arrays of Fe(110) nanowires grown on kinetically-grooved W(110) self-organized templates (2009)

Borca, Bogdana, Fruchart, Olivier, Kritsikis, Evaggelos, Cheynis, Fabien, Rousseau, Anthony, David, Philippe, ...

We report a detailed magnetic study of a new type of self-organized nanowires disclosed briefly previously [B. Borca et al., Appl. Phys. Lett. 90, 142507 (2007)]. The templates, prepared on sapphire...

Lorentz microscopy mapping for domain walls structure study in L1$_0$ FePd thin films (2009)

Masseboeuf, Aurélien, Gatel, Christophe, Bayle-Guillemaud, Pascale, Marty, Alain, Toussaint, Jean-Christophe

Thin film alloys with perpendicular anisotropy were studied using Lorentz Transmission Electron Microscopy (LTEM). This work focuses on the configuration of domain walls and demonstrates the...

Asymmetric hysteresis of Néel caps in flux-closure magnetic dots (2009)

Fruchart, Olivier, Rougemaille, Nicolas, Bendounan, Azzedine, Toussaint, Jean-Christophe, Belkhou, Rachid, Tian, Yuan, ...

We investigated with XMCD-PEEM magnetic imaging the magnetization reversal processes of Néel caps inside Bloch walls in self-assembled, micron-sized Fe(110) dots with flux-closure magnetic state. In...

How many bits may fit in a single magnetic dot? XMCD-PEEM evidences the switching of Néel caps inside Bloch domain walls (2009)

Cheynis, Fabien, Masseboeuf, Aurélien, Fruchart, Olivier, Rougemaille, Nicolas, Toussaint, Jean-Christophe, Belkhou, Rachid, ...

Data storage relies on the handling of two states, called bits. The market of mass storage is currently still dominated by magnetic technology, hard disk drives for the broad public and tapes for...

Dimensionality cross-over in magnetism: from domain walls (2D) to vortices (1D) (2009)

Masseboeuf, Aurélien, Fruchart, Olivier, Toussaint, Jean-Christophe, Cheynis, Fabien, Bayle-Guillemaud, Pascale, Marty, A.

Dimensionality cross-over is a classical topic in physics. Surprisingly it has not been searched in micromagnetism, which deals with objects such as domain walls (2D) and vortices (1D). We predict by...

Contacting individual Fe(110) dots in a single electron-beam lithography step (2009)

Cheynis, Fabien, Haas, Helge, Fournier, Thierry, Ranno, Laurent, Wernsdorfer, Wolfgang, Fruchart, Olivier, ...

We report on a new approach, entirely based on electron-beam lithography technique, to contact electrically, in a four-probe scheme, single nanostructures obtained by self-assembly. In our procedure,...

Controlled switching of Néel caps in flux-closure magnetic dots (2009)

Cheynis, Fabien, Masseboeuf, Aurélien, Fruchart, Olivier, Rougemaille, Nicolas, Toussaint, Jean-Christophe, Belkhou, Rachid, ...

While magnetic hysteresis usually considers magnetic domains, the switching of the core of magnetic vortices has recently become an active topic. We considered Bloch domain walls, which are known to...

Lorentz microscopy mapping for domain walls structure study in L1$_0$ FePd thin films (2009)

Masseboeuf, Aurélien, Gatel, Christophe, Bayle-Guillemaud, Pascale, Marty, Alain, Toussaint, Jean-Christophe

Thin film alloys with perpendicular anisotropy were studied using Lorentz Transmission Electron Microscopy (LTEM). This work focuses on the configuration of domain walls and demonstrates the...

How many bits may fit in a single magnetic dot? XMCD-PEEM evidences the switching of Néel caps inside Bloch domain walls (2009)

Cheynis, Fabien, Masseboeuf, Aurélien, Fruchart, Olivier, Rougemaille, Nicolas, Toussaint, Jean-Christophe, Belkhou, Rachid, ...

Data storage relies on the handling of two states, called bits. The market of mass storage is currently still dominated by magnetic technology, hard disk drives for the broad public and tapes for...

Lorentz microscopy mapping for domain walls structure study in L1$_0$ FePd thin films (2009)

Masseboeuf, Aurélien, Gatel, Christophe, Bayle-Guillemaud, Pascale, Marty, Alain, Toussaint, Jean-Christophe

Thin film alloys with perpendicular anisotropy were studied using Lorentz Transmission Electron Microscopy (LTEM). This work focuses on the configuration of domain walls and demonstrates the...

How many bits may fit in a single magnetic dot? XMCD-PEEM evidences the switching of Néel caps inside Bloch domain walls (2009)

Cheynis, Fabien, Masseboeuf, Aurélien, Fruchart, Olivier, Rougemaille, Nicolas, Toussaint, Jean-Christophe, Belkhou, Rachid, ...

Data storage relies on the handling of two states, called bits. The market of mass storage is currently still dominated by magnetic technology, hard disk drives for the broad public and tapes for...

Fast computation of magnetostatic fields by Non-uniform Fast Fourier Transforms (2008)

Kritsikis, Evaggelos, Toussaint, Jean-Christophe, Fruchart, Olivier, Szambolics, Helga, Buda-Prejbeanu, L. D.

The bottleneck of micromagnetic simulations is the computation of the long-ranged magnetostatic fields. This can be tackled on regular N-node grids with Fast Fourier Transforms in time N logN,...

Fast computation of magnetostatic fields by Non-uniform Fast Fourier Transforms (2008)

Kritsikis, Evaggelos, Toussaint, Jean-Christophe, Fruchart, Olivier, Szambolics, Helga, Buda-Prejbeanu, L. D.

The bottleneck of micromagnetic simulations is the computation of the long-ranged magnetostatic fields. This can be tackled on regular N-node grids with Fast Fourier Transforms in time N logN,...

Fast computation of magnetostatic fields by Non-uniform Fast Fourier Transforms (2008)

Kritsikis, Evaggelos, Toussaint, Jean-Christophe, Fruchart, Olivier

The bottleneck of micromagnetic simulations is the computation of the long-ranged magnetostatic fields. This can be tackled on regular N-node grids with Fast Fourier Transforms in time N logN,...

Innovative Weak Formulation for The Landau-Lifshitz-Gilbert Equations (2008)

Szambolics, Helga, Toussaint, Jean-Christophe, Buda-Prejbeanu, L. D., Alouges, François, Kritsikis, Evaggelos, Fruchart, Olivier

A non-conventional finite element formalism is proposed to solve the dynamic Landau-Lifshitz-Gilbert micromagnetic equations. Two bidimensional test problems are treated to estimate the validity and...

X-ray photoelectron emission microscopy in combination with x-ray magnetic circular dichroism investigation of size effects on field-induced N\'eel-cap reversal (2008)

Cheynis, Fabien, Rougemaille, Nicolas, Belkhou, Rachid, Toussaint, Jean-Christophe, Fruchart, Olivier

X-ray photoelectron emission microscopy in combination with x-ray magnetic circular dichroism is used to investigate the influence of an applied magnetic field on N\'eel caps (i.e., surface...

Finite Element Formalism for Micromagnetism (2008)

Szambolics, Helga, Buda, Liliana-Daniela, Toussaint, Jean-Christophe, Fruchart, Olivier

The aim of this work is to present the details of the finite element approach we developed for solving the Landau-Lifschitz-Gilbert equations in order to be able to treat problems involving complex...

X-ray photoelectron emission microscopy in combination with x-ray magnetic circular dichroism investigation of size effects on field-induced Néel-cap reversal (2008)

Cheynis, Fabien, Rougemaille, Nicolas, Belkhou, Rachid, Toussaint, Jean-Christophe, Fruchart, Olivier

X-ray photoelectron emission microscopy in combination with x-ray magnetic circular dichroism is used to investigate the influence of an applied magnetic field on Néel caps (i.e., surface...

X-ray photoelectron emission microscopy in combination with x-ray magnetic circular dichroism investigation of size effects on field-induced Néel-cap reversal (2008)

Cheynis, Fabien, Rougemaille, Nicolas, Belkhou, Rachid, Toussaint, Jean-Christophe, Fruchart, Olivier

X-ray photoelectron emission microscopy in combination with x-ray magnetic circular dichroism is used to investigate the influence of an applied magnetic field on Néel caps (i.e., surface...

Finite Element Formalism for Micromagnetism (2008)

Szambolics, Helga, Buda, Liliana-Daniela, Toussaint, Jean-Christophe, Fruchart, Olivier

The aim of this work is to present the details of the finite element approach we developed for solving the Landau-Lifschitz-Gilbert equations in order to be able to treat problems involving complex...

Innovative Weak Formulation for The Landau-Lifshitz-Gilbert Equations (2008)

Szambolics, Helga, Toussaint, Jean-Christophe, Buda-Prejbeanu, L. D., Alouges, François, Kritsikis, Evaggelos, Fruchart, Olivier

A non-conventional finite element formalism is proposed to solve the dynamic Landau-Lifshitz-Gilbert micromagnetic equations. Two bidimensional test problems are treated to estimate the validity and...

Innovative Weak Formulation for The Landau-Lifshitz-Gilbert Equations (2008)

Szambolics, Helga, Toussaint, Jean-Christophe, Buda-Prejbeanu, L. D., Alouges, François, Kritsikis, Evaggelos, Fruchart, Olivier

A non-conventional finite element formalism is proposed to solve the dynamic Landau-Lifshitz-Gilbert micromagnetic equations. Two bidimensional test problems are treated to estimate the validity and...

Contacting individual Fe(110) dots in a single electron-beam lithography step (2008)

Cheynis, Fabien, Haas, Helge, Fournier, Thierry, Ranno, Laurent, Wernsdorfer, Wolfgang, Fruchart, Olivier, ...

We report on a new approach, entirely based on electron-beam lithography technique, to contact electrically, in a four-probe scheme, single nanostructures obtained by self-assembly. This technique...

Contacting individual Fe(110) dots in a single electron-beam lithography step (2008)

Cheynis, Fabien, Haas, Helge, Fournier, Thierry, Ranno, Laurent, Wernsdorfer, Wolfgang, Fruchart, Olivier, ...

We report on a new approach, entirely based on electron-beam lithography technique, to contact electrically, in a four-probe scheme, single nanostructures obtained by self-assembly. This technique...

Fast computation of magnetostatic fields by Non-uniform Fast Fourier Transforms (2008)

Kritsikis, Evaggelos, Toussaint, Jean-Christophe, Fruchart, Olivier, Szambolics, Helga, Buda-Prejbeanu, L. D.

The bottleneck of micromagnetic simulations is the computation of the long-ranged magnetostatic fields. This can be tackled on regular N-node grids with Fast Fourier Transforms in time N logN,...

Fast computation of magnetostatic fields by Non-uniform Fast Fourier Transforms (2008)

Kritsikis, Evaggelos, Toussaint, Jean-Christophe, Fruchart, Olivier, Szambolics, Helga, Buda-Prejbeanu, L. D.

The bottleneck of micromagnetic simulations is the computation of the long-ranged magnetostatic fields. This can be tackled on regular N-node grids with Fast Fourier Transforms in time N logN,...

Lorentz microscopy mapping during magnetization process of L10 FePd thin films (2008)

Masseboeuf, Aurélien, GATEL, Christophe, Marty, Alain, Toussaint, Jean-Christophe, Bayle-Guillemaud, Pascale

Lorentz Transmission Electron Microscopy (LTEM) allows the observation of magnetization evolution in thin magnetic layers. Electron Microscopy which enables observation at a nanometric scale is...

Lorentz microscopy mapping during magnetization process of L10 FePd thin films (2008)

Masseboeuf, Aurélien, GATEL, Christophe, Marty, Alain, Toussaint, Jean-Christophe, Bayle-Guillemaud, Pascale

Lorentz Transmission Electron Microscopy (LTEM) allows the observation of magnetization evolution in thin magnetic layers. Electron Microscopy which enables observation at a nanometric scale is...

Contacting individual Fe(110) dots in a single electron-beam lithography step (2008)

Cheynis, Fabien, Haas, Helge, Fournier, Thierry, Ranno, Laurent, Wernsdorfer, Wolfgang, Fruchart, Olivier, ...

We report on a new approach, entirely based on electron-beam lithography technique, to contact electrically, in a four-probe scheme, single nanostructures obtained by self-assembly. In our procedure,...

Contacting individual Fe(110) dots in a single electron-beam lithography step (2008)

Cheynis, Fabien, Haas, Helge, Fournier, Thierry, Ranno, Laurent, Wernsdorfer, Wolfgang, Fruchart, Olivier, ...

We report on a new approach, entirely based on electron-beam lithography technique, to contact electrically, in a four-probe scheme, single nanostructures obtained by self-assembly. In our procedure,...

Innovative Weak Formulation for The Landau-Lifshitz-Gilbert Equations (2008)

Szambolics, Helga, Toussaint, Jean-Christophe, Buda-Prejbeanu, L. D., Alouges, François, Kritsikis, Evaggelos, Fruchart, Olivier

A non-conventional finite element formalism is proposed to solve the dynamic Landau-Lifshitz-Gilbert micromagnetic equations. Two bidimensional test problems are treated to estimate the validity and...

Lorentz microscopy mapping during magnetization process of L10 FePd thin films (2008)

Masseboeuf, Aurélien, GATEL, Christophe, Marty, Alain, Toussaint, Jean-Christophe, Bayle-Guillemaud, Pascale

Lorentz Transmission Electron Microscopy (LTEM) allows the observation of magnetization evolution in thin magnetic layers. Electron Microscopy which enables observation at a nanometric scale is...

Fast computation of magnetostatic fields by Non-uniform Fast Fourier Transforms (2008)

Kritsikis, Evaggelos, Toussaint, Jean-Christophe, Fruchart, Olivier, Szambolics, Helga, Buda-Prejbeanu, L. D.

The bottleneck of micromagnetic simulations is the computation of the long-ranged magnetostatic fields. This can be tackled on regular N-node grids with Fast Fourier Transforms in time N logN,...

Finite Element Formalism for Micromagnetism (2008)

Szambolics, Helga, Buda, Liliana-Daniela, Toussaint, Jean-Christophe, Fruchart, Olivier

The aim of this work is to present the details of the finite element approach we developed for solving the Landau-Lifschitz-Gilbert equations in order to be able to treat problems involving complex...

X-ray photoelectron emission microscopy in combination with x-ray magnetic circular dichroism investigation of size effects on field-induced Néel-cap reversal (2008)

Cheynis, Fabien, Rougemaille, Nicolas, Belkhou, Rachid, Toussaint, Jean-Christophe, Fruchart, Olivier

X-ray photoelectron emission microscopy in combination with x-ray magnetic circular dichroism is used to investigate the influence of an applied magnetic field on Néel caps (i.e., surface...

Innovative Weak Formulation for The Landau-Lifshitz-Gilbert Equations (2008)

Szambolics, Helga, Toussaint, Jean-Christophe, Buda-Prejbeanu, L. D., Alouges, François, Kritsikis, Evaggelos, Fruchart, Olivier

A non-conventional finite element formalism is proposed to solve the dynamic Landau-Lifshitz-Gilbert micromagnetic equations. Two bidimensional test problems are treated to estimate the validity and...

Lorentz microscopy mapping during magnetization process of L10 FePd thin films (2008)

Masseboeuf, Aurélien, GATEL, Christophe, Marty, Alain, Toussaint, Jean-Christophe, Bayle-Guillemaud, Pascale

Lorentz Transmission Electron Microscopy (LTEM) allows the observation of magnetization evolution in thin magnetic layers. Electron Microscopy which enables observation at a nanometric scale is...

Finite Element Formalism for Micromagnetism (2008)

Szambolics, Helga, Buda, Liliana-Daniela, Toussaint, Jean-Christophe, Fruchart, Olivier

The aim of this work is to present the details of the finite element approach we developed for solving the Landau-Lifschitz-Gilbert equations in order to be able to treat problems involving complex...

X-ray photoelectron emission microscopy in combination with x-ray magnetic circular dichroism investigation of size effects on field-induced Néel-cap reversal (2008)

Cheynis, Fabien, Rougemaille, Nicolas, Belkhou, Rachid, Toussaint, Jean-Christophe, Fruchart, Olivier

X-ray photoelectron emission microscopy in combination with x-ray magnetic circular dichroism is used to investigate the influence of an applied magnetic field on Néel caps (i.e., surface...

Innovative Weak Formulation for The Landau-Lifshitz-Gilbert Equations (2008)

Szambolics, Helga, Toussaint, Jean-Christophe, Buda-Prejbeanu, L. D., Alouges, François, Kritsikis, Evaggelos, Fruchart, Olivier

A non-conventional finite element formalism is proposed to solve the dynamic Landau-Lifshitz-Gilbert micromagnetic equations. Two bidimensional test problems are treated to estimate the validity and...

Lorentz microscopy mapping during magnetization process of L10 FePd thin films (2008)

Masseboeuf, Aurélien, GATEL, Christophe, Marty, Alain, Toussaint, Jean-Christophe, Bayle-Guillemaud, Pascale

Lorentz Transmission Electron Microscopy (LTEM) allows the observation of magnetization evolution in thin magnetic layers. Electron Microscopy which enables observation at a nanometric scale is...

Finite Element Formalism for Micromagnetism (2008)

Szambolics, Helga, Buda, Liliana-Daniela, Toussaint, Jean-Christophe, Fruchart, Olivier

The aim of this work is to present the details of the finite element approach we developed for solving the Landau-Lifschitz-Gilbert equations in order to be able to treat problems involving complex...

X-ray photoelectron emission microscopy in combination with x-ray magnetic circular dichroism investigation of size effects on field-induced Néel-cap reversal (2008)

Cheynis, Fabien, Rougemaille, Nicolas, Belkhou, Rachid, Toussaint, Jean-Christophe, Fruchart, Olivier

X-ray photoelectron emission microscopy in combination with x-ray magnetic circular dichroism is used to investigate the influence of an applied magnetic field on Néel caps (i.e., surface...

Controlled switching of N\'eel caps in flux-closure magnetic dots (2007)

Cheynis, Fabien, Masseboeuf, Aurélien, Fruchart, Olivier, Rougemaille, Nicolas, Toussaint, Jean-Christophe, Belkhou, Rachid, ...

While magnetic hysteresis usually considers magnetic domains, the switching of the core of magnetic vortices has recently become an active topic. We considered Bloch domain walls, which are known to...

How many bits in a single magnetic dot? (2007)

Cheynis, Fabien, Fruchart, Olivier, Toussaint, Jean-Christophe, Rougemaille, Nicolas, Belkhou, Rachid

Digital information processing relies on the handling of two states, called bits or '0' and '1'. In magnetoelectronic devices bits are stored using the two possible directions of magnetization in...

How many bits in a single magnetic dot? (2007)

Cheynis, Fabien, Fruchart, Olivier, Toussaint, Jean-Christophe, Rougemaille, Nicolas, Belkhou, Rachid

Digital information processing relies on the handling of two states, called bits or '0' and '1'. In magnetoelectronic devices bits are stored using the two possible directions of magnetization in...

Electron Microscopy Investigation of Magnetization Process in Thin Foils and Nanostructures (2007)

Masseboeuf, Aurélien, Cheynis, Fabien, Toussaint, Jean-Christophe, Fruchart, Olivier, GATEL, Christophe, Marty, Alain, ...

This paper presents an investigation of magnetization configuration evolution during insitu magnetic processes, in materials exhibiting planar and perpendicular magnetic anisotropy. Transmission...

Electron Microscopy Investigation of Magnetization Process in Thin Foils and Nanostructures (2007)

Masseboeuf, Aurélien, Cheynis, Fabien, Toussaint, Jean-Christophe, Fruchart, Olivier, GATEL, Christophe, Marty, Alain, ...

This paper presents an investigation of magnetization configuration evolution during insitu magnetic processes, in materials exhibiting planar and perpendicular magnetic anisotropy. Transmission...

Finite Element Formalism for Micromagnetism (2007)

Szambolics, Helga, Buda, Liliana-Daniela, Toussaint, Jean-Christophe, Fruchart, Olivier

The aim of this work is to present the details of the finite element approach we developed for solving the Landau-Lifschitz-Gilbert equations in order to be able to treat problems involving complex...

Controlled switching of Néel caps in flux-closure magnetic dots (2007)

Cheynis, Fabien, Masseboeuf, Aurélien, Fruchart, Olivier, Rougemaille, Nicolas, Toussaint, Jean-Christophe, Belkhou, Rachid, ...

While magnetic hysteresis usually considers magnetic domains, the switching of the core of magnetic vortices has recently become an active topic. We considered Bloch domain walls, which are known to...

Controlled switching of Néel caps in flux-closure magnetic dots (2007)

Cheynis, Fabien, Masseboeuf, Aurélien, Fruchart, Olivier, Rougemaille, Nicolas, Toussaint, Jean-Christophe, Belkhou, Rachid, ...

While magnetic hysteresis usually considers magnetic domains, the switching of the core of magnetic vortices has recently become an active topic. We considered Bloch domain walls, which are known to...

Electron Microscopy Investigation of Magnetization Process in Thin Foils and Nanostructures (2007)

Masseboeuf, Aurélien, Cheynis, Fabien, Toussaint, Jean-Christophe, Fruchart, Olivier, GATEL, Christophe, Marty, Alain, ...

This paper presents an investigation of magnetization configuration evolution during insitu magnetic processes, in materials exhibiting planar and perpendicular magnetic anisotropy. Transmission...

Electron Microscopy Investigation of Magnetization Process in Thin Foils and Nanostructures (2007)

Masseboeuf, Aurélien, Cheynis, Fabien, Toussaint, Jean-Christophe, Fruchart, Olivier, GATEL, Christophe, Marty, Alain, ...

This paper presents an investigation of magnetization configuration evolution during insitu magnetic processes, in materials exhibiting planar and perpendicular magnetic anisotropy. Transmission...

Electron Microscopy Investigation of Magnetization Process in Thin Foils and Nanostructures (2007)

Masseboeuf, Aurélien, Cheynis, Fabien, Toussaint, Jean-Christophe, Fruchart, Olivier, GATEL, Christophe, Marty, Alain, ...

This paper presents an investigation of magnetization configuration evolution during insitu magnetic processes, in materials exhibiting planar and perpendicular magnetic anisotropy. Transmission...

Angular-dependence of magnetization switching for a multi-domain dot: experiment and simulation (2006)

Fruchart, Olivier, Toussaint, Jean-Christophe, Jubert, Pierre-Olivier, Wernsdorfer, Wolfgang, Hertel, Riccardo, Mailly, Dominique, ...

We have measured the in-plane angular variation of nucleation and annihilation fields of a multi-domain magnetic single dot with a microsquid. The dots are Fe/Mo(110) self-assembled in UHV, with...

Micromagnetic Numerical Simulations (2006)

Alouges, François, Labbé, Stéphane, Toussaint, Jean-Christophe, Vukadinovic, Nicolas

La mod ́elisation de mat ́eriaux ferromagn ́etiques suit la th ́eorie du micromagn ́etisme propośee par Brown pour les configurations statiques (d' ́equilibre) et...

Micromagnetic Numerical Simulations (2006)

Alouges, François, Labbé, Stéphane, Toussaint, Jean-Christophe, Vukadinovic, Nicolas

La mod ́elisation de mat ́eriaux ferromagn ́etiques suit la th ́eorie du micromagn ́etisme propośee par Brown pour les configurations statiques (d' ́equilibre) et...

Micromagnetic Numerical Simulations (2006)

Alouges, François, Labbé, Stéphane, Toussaint, Jean-Christophe, Vukadinovic, Nicolas

La mod ́elisation de mat ́eriaux ferromagn ́etiques suit la th ́eorie du micromagn ́etisme propośee par Brown pour les configurations statiques (d' ́equilibre) et les ́equations de...

Micromagnetic Numerical Simulations (2006)

Alouges, François, Labbé, Stéphane, Toussaint, Jean-Christophe, Vukadinovic, Nicolas

La mod ́elisation de mat ́eriaux ferromagn ́etiques suit la th ́eorie du micromagn ́etisme propośee par Brown pour les configurations statiques (d' ́equilibre) et les ́equations de...

Micromagnetic Numerical Simulations (2006)

Alouges, François, Labbé, Stéphane, Toussaint, Jean-Christophe, Vukadinovic, Nicolas

La mod ́elisation de mat ́eriaux ferromagn ́etiques suit la th ́eorie du micromagn ́etisme propośee par Brown pour les configurations statiques (d' ́equilibre) et les ́equations de...

Angular-dependence of magnetization switching for a multi-domain dot: experiment and simulation (2004)

Fruchart, Olivier, Toussaint, Jean-Christophe, Jubert, Pierre-Olivier, Wernsdorfer, Wolfgang, Hertel, Riccardo, Mailly, Dominique, ...

We have measured the in-plane angular variation of nucleation and annihilation fields of a multi-domain magnetic single dot with a microsquid. The dots are Fe/Mo(110) self-assembled in UHV, with...

Micromagnetic model of magnetization reversal of magnetically hard ultrathin dots and stripes (2004)

Eleoui, Mustafa, Fruchart, Olivier, Toussaint, Jean-Christophe

We propose improvements and extensions to an analytical model of magnetization reversal in ultrathin flat dots and stripes with in-plane uniaxial anisotropy. Owing to the localized character of...

Angular-dependence of magnetization switching for a multi-domain dot: experiment and simulation (2004)

Fruchart, Olivier, Toussaint, Jean-Christophe, Jubert, Pierre-Olivier, Wernsdorfer, Wolfgang, Hertel, Riccardo, Mailly, Dominique, ...

We have measured the in-plane angular variation of nucleation and annihilation fields of a multi-domain magnetic single dot with a microsquid. The dots are Fe/Mo(110) self-assembled in UHV, with...

Micromagnetic model of magnetization reversal of magnetically hard ultrathin dots and stripes (2004)

Eleoui, Mustafa, Fruchart, Olivier, Toussaint, Jean-Christophe

We propose improvements and extensions to an analytical model of magnetization reversal in ultrathin flat dots and stripes with in-plane uniaxial anisotropy. Owing to the localized character of...

Micromagnetic model of magnetization reversal of magnetically hard ultrathin dots and stripes (2004)

Eleoui, Mustafa, Fruchart, Olivier, Toussaint, Jean-Christophe

We propose improvements and extensions to an analytical model of magnetization reversal in ultrathin flat dots and stripes with in-plane uniaxial anisotropy. Owing to the localized character of...

Micromagnetic model of magnetization reversal of magnetically hard ultrathin dots and stripes (2004)

Eleoui, Mustafa, Fruchart, Olivier, Toussaint, Jean-Christophe

We propose improvements and extensions to an analytical model of magnetization reversal in ultrathin flat dots and stripes with in-plane uniaxial anisotropy. Owing to the localized character of...

Micromagnetic model of magnetization reversal of magnetically hard ultrathin dots and stripes (2004)

Eleoui, Mustafa, Fruchart, Olivier, Toussaint, Jean-Christophe

We propose improvements and extensions to an analytical model of magnetization reversal in ultrathin flat dots and stripes with in-plane uniaxial anisotropy. Owing to the localized character of...

Micromagnetic model of magnetization reversal of magnetically hard ultrathin dots and stripes (2004)

Eleoui, Mustafa, Fruchart, Olivier, Toussaint, Jean-Christophe

We propose improvements and extensions to an analytical model of magnetization reversal in ultrathin flat dots and stripes with in-plane uniaxial anisotropy. Owing to the localized character of...

Micromagnetic model of magnetization reversal of magnetically hard ultrathin dots and stripes (2004)

Eleoui, Mustafa, Fruchart, Olivier, Toussaint, Jean-Christophe

We propose improvements and extensions to an analytical model of magnetization reversal in ultrathin flat dots and stripes with in-plane uniaxial anisotropy. Owing to the localized character of...

Flux-closure-domain states and demagnetizing energy determination in sub-micron size magnetic dots (2003)

Jubert, Pierre-Olivier, Toussaint, Jean-Christophe, Fruchart, Olivier, Meyer, Claire, Samson, Yves

We used single-crystalline Fe dots self-assembled under UHV as a model system to discuss micromagnetic properties of sub-micron size magnetic dots and show what properties may or may not be scaled...

Flux-closure-domain states and demagnetizing energy determination in sub-micron size magnetic dots (2003)

Jubert, Pierre-Olivier, Toussaint, Jean-Christophe, Fruchart, Olivier, Meyer, Claire, Samson, Yves

We used single-crystalline Fe dots self-assembled under UHV as a model system to discuss micromagnetic properties of sub-micron size magnetic dots and show what properties may or may not be scaled...

Flux-closure-domain states and demagnetizing energy determination in sub-micron size magnetic dots (2003)

Jubert, Pierre-Olivier, Toussaint, Jean-Christophe, Fruchart, Olivier, Meyer, Claire, Samson, Yves

We used single-crystalline Fe dots self-assembled under UHV as a model system to discuss micromagnetic properties of sub-micron size magnetic dots and show what properties may or may not be scaled...

Flux-closure-domain states and demagnetizing energy determination in sub-micron size magnetic dots (2003)

Jubert, Pierre-Olivier, Toussaint, Jean-Christophe, Fruchart, Olivier, Meyer, Claire, Samson, Yves

We used single-crystalline Fe dots self-assembled under UHV as a model system to discuss micromagnetic properties of sub-micron size magnetic dots and show what properties may or may not be scaled...

Flux-closure-domain states and demagnetizing energy determination in sub-micron size magnetic dots (2003)

Jubert, Pierre-Olivier, Toussaint, Jean-Christophe, Fruchart, Olivier, Meyer, Claire, Samson, Yves

We used single-crystalline Fe dots self-assembled under UHV as a model system to discuss micromagnetic properties of sub-micron size magnetic dots and show what properties may or may not be scaled...

Flux-closure-domain states and demagnetizing energy determination in sub-micron size magnetic dots (2003)

Jubert, Pierre-Olivier, Toussaint, Jean-Christophe, Fruchart, Olivier, Meyer, Claire, Samson, Yves

We used single-crystalline Fe dots self-assembled under UHV as a model system to discuss micromagnetic properties of sub-micron size magnetic dots and show what properties may or may not be scaled...

Flux-closure-domain states and demagnetizing energy determination in sub-micron size magnetic dots (2003)

Jubert, Pierre-Olivier, Toussaint, Jean-Christophe, Fruchart, Olivier, Meyer, Claire, Samson, Yves

We used single-crystalline Fe dots self-assembled under UHV as a model system to discuss micromagnetic properties of sub-micron size magnetic dots and show what properties may or may not be scaled...