Frequency converter based on nanoscale MgO magnetic tunnel junctions (2009)
Georges, B., Grollier, J., Cros, V., Marcilhac, B., ...
We observe both dc voltage rectification and frequency conversion that occur when a reference microwave current is injected to a MgO based magnetic tunnel junction (MTJ). The rectification that is...
Origin of the spectral linewidth in non linear oscillators based on MgO tunnel junctions (2009)
Georges, B., Grollier, J., Cros, V., Fert, A., Fukushima, A., Kubota, H., ...
We demonstrate the strong impact of the oscillator agility on the line broadening by studying spin transfer induced microwave emission in MgO-based tunnel junctions with current. The linewidth is...
Tran, M., Jaffres, H., Deranlot, C., Fert, A., Miard, A., ...
We report on spin injection experiments at a Co/Al$_2$O$_3$/GaAs interface with electrical detection. The application of a transverse magnetic field induces a large voltage drop $\Delta V$ at the...
Georges, B., Grollier, J., Cros, V., Fert, A.
Spin Transfer Nano-Oscillators (STNOs) are good candidates for applications to telecommunications, but their output power is very low, under the nW. A possible solution to overcome this problem is to...
Coupling efficiency for phase locking of a spin transfer oscillator to a microwave current (2008)
Georges, B., Grollier, J., Darques, M., Cros, V., Deranlot, C., Marcilhac, B., ...
The phase locking behavior of spin transfer nano-oscillators (STNOs) to an external microwave signal is experimentally studied as a function of the STNO intrinsic parameters. We extract the coupling...
Boulle, O., Cros, V., Grollier, J., Pereira, L. G., Deranlot, C., Petroff, F., ...
The spin transfer torque (STT) can lead to steady precession of magnetization without any external applied field in magnetic spin valve where the magnetic layer have very different spin diffusion...
Evidence for Two Current Conduction in Iron (2007)
Campbell, I. A., Fert, A., Pomeroy, A. R.
Measurements of resistivities of dilute iron based alloys show strong deviations from Matthiessen's rule. These deviations can be explained by a model in which spin up and spin down electrons conduct...
High Mobility in LaAlO3/SrTiO3 Heterostructures: Origin, Dimensionality and Perspectives (2007)
Herranz, G., Basletic, M., Bibes, M., Carretero, C., Tafra, E., Jacquet, E., ...
We have investigated the dimensionality and origin of the magnetotransport properties of LaAlO3 films epitaxially grown on TiO2-terminated SrTiO3(001) substrates. High mobility conduction is observed...
Boulle, O., Cros, V., Grollier, J., Pereira, L. G., Deranlot, C., Petroff, F., ...
The generation of oscillations in the microwave frequency range is one of the most important applications expected from spintronics devices exploiting the spin transfer phenomenon. We report...
Semiconductors between spin-polarized source and drain (2006)
Fert, A., Jaffres, H., Mattana, R.
Injecting spins into a semiconductor channel and transforming the spin information into a significant electrical output signal is a long standing problem in spintronics. Actually, this is the...
Origin and Perspectives of High Mobility in LaAlO3/SrTiO3 Structures (2006)
Herranz, G., Basletic, M., Bibes, M., Carretero, C., Tafra, E., Jacquet, E., ...
LaAlO3/SrTiO3 structures showing high mobility conduction have recently aroused large expectations as they might represent a major step towards the conception of all-oxide electronics devices. For...
Spin injection in a single metallic nanoparticle: a step towards nanospintronics (2006)
Bernand-Mantel, A., Seneor, P., Lidgi, N., Munoz, M., Cros, V., Fusil, S., ...
We have fabricated nanometer sized magnetic tunnel junctions using a new nanoindentation technique in order to study the transport properties of a single metallic nanoparticle. Coulomb blockade...
Spin injection in a single metallic nanoparticle: a step towards nanospintronics (2006)
Bernand-Mantel, A., Seneor, P., Lidgi, N., Munoz, M., Cros, V., Fusil, S., ...
We have fabricated nanometer sized magnetic tunnel junctions using a new nanoindentation technique in order to study the transport properties of a single metallic nanoparticle. Coulomb blockade...
Spin injection in a single metallic nanoparticle: a step towards nanospintronics (2006)
Bernand-Mantel, A., Seneor, P., Lidgi, N., Munoz, M., Cros, V., Fusil, S., ...
We have fabricated nanometer sized magnetic tunnel junctions using a new nanoindentation technique in order to study the transport properties of a single metallic nanoparticle. Coulomb blockade...
Spin injection in a single metallic nanoparticle: a step towards nanospintronics (2006)
Bernand-Mantel, A., Seneor, P., Lidgi, N., Munoz, M., Cros, V., Fusil, S., ...
We have fabricated nanometer sized magnetic tunnel junctions using a new nanoindentation technique in order to study the transport properties of a single metallic nanoparticle. Coulomb blockade...
Spin injection in a single metallic nanoparticle: a step towards nanospintronics (2006)
Bernand-Mantel, A., Seneor, P., Lidgi, N., Munoz, M., Cros, V., Fusil, S., ...
We have fabricated nanometer sized magnetic tunnel junctions using a new nanoindentation technique in order to study the transport properties of a single metallic nanoparticle. Coulomb blockade...
Herranz, G., Basletic, M., Bibes, M., Ranchal, R., Hamzic, A., Tafra, E., ...
We report on the growth of heterostructures composed of layers of the high-Curie temperature ferromagnet Co-doped (La,Sr)TiO3 (Co-LSTO) with high-mobility SrTiO3 (STO) substrates processed at low...
Synchronization of spin-transfer oscillators driven by stimulated microwave currents (2005)
Grollier, J., Cros, V., Fert, A.
We have simulated the non-linear dynamics of networks of spin-transfer oscillators. The oscillators are magnetically uncoupled but electrically connected in series. We use a modified...
Spin-polarized tunneling spectroscopy in tunnel junctions with half-metallic electrodes (2005)
Bowen, M., Barthélémy, A., Bibes, M., Jacquet, E., Fert, A., ...
We have studied the magnetoresistance (TMR) of tunnel junctions with electrodes of La2/3Sr1/3MnO3 and we show how the variation of the conductance and TMR with the bias voltage can be exploited to...
Herranz, G., Ranchal, R., Bibes, M., Jaffres, H., Jacquet, E., Maurice, J. L., ...
We report on tunneling magnetoresistance (TMR) experiments that demonstrate the existence of a significant spin polarization in Co-doped (La,Sr)TiO3-d (Co-LSTO), a ferromagnetic diluted magnetic...
Spin filtering through ferromagnetic BiMnO3 tunnel barriers (2005)
Gajek, M., Bibes, M., Barthelemy, A., Bouzehouane, K., Fusil, S., Varela, M., ...
We report on experiments of spin filtering through ultra-thin single-crystal layers of the insulating and ferromagnetic oxide BiMnO3 (BMO). The spin polarization of the electrons tunneling from a...
Macroscopic description of current induced switching due to spin-transfer (2005)
Barnas, J., Fert, A., Gmitra, M., Weymann, I., Dugaev, V. K.
We develop a macroscopic description of the current-induced torque due to spin transfer in a layered system consisting of two ferromagnetic layers separated by a nonmagnetic layer. The description is...
AlHajDarwish, M., Kurt, H., Urazhdin, S., Fert, A., Loloee, R., Pratt Jr., W. P., ...
Combining pairs of ferromagnetic metals with different signs of scattering anisotropies, let us independently invert the magnetoresistance and the direction of current-driven switching in...
Inverted current-driven switching in Fe(Cr)/Cr/Fe(Cr) nanopillars (2003)
AlHajDarwish, M., Fert, A., Pratt Jr, W. P., Bass, J.
From both theory and experiment, scattering of minority electrons is expected to be weaker than scattering of majority electrons in both dilute Fe(Cr) alloys and at Fe(Cr)/Cr interfaces. We show that...
Magnetization reversal by injection and transfer of spin: experiments and theory (2003)
Fert, A., Cros, V., Grollier, J., Jaffres, H., Hamzic, A., ...
Reversing the magnetization of a ferromagnet by spin transfer from a current, rather than by applying a magnetic field, is the central idea of an extensive current research. After a review of our...
Switching a spin-valve back and forth by current-induced domain wall motion (2003)
Grollier, J., Boulenc, P., Cros, V., Hamzic, A., Vaures, A., Fert, A., ...
We have studied the current-induced displacement of a domain wall (DW) in the permalloy (Py) layer of a Co/Cu/Py spin valve structure at zero and very small applied field. The displacement is in...
Electrical detection of spin accumulation in a p-type GaAs quantum well (2002)
Mattana, R., Jaffres, H., Van Dau, F. Nguyen, Fert, A., Lepine, B., ...
We report on experiments in which a spin-polarized current is injected from a $GaMnAs$ ferromagnetic electrode into a $GaAs$ quantum well through an AlAs barrier. The resulting spin polarization in...
Field dependence of magnetization reversal by spin transfer (2002)
Grollier, J., Cros, V., Jaffres, H., Hamzic, A., George, J. M., Faini, G., ...
We analyse the effect of the applied field (Happl) on the current-driven magnetization reversal in pillar-shaped Co/Cu/Co trilayers, where we observe two different types of transition between the...
Nearly total spin polarization in La2/3Sr1/3MnO3 from tunneling experiments (2002)
Bowen, M., Bibes, M., Barthelemy, A., Anane, A., Lemaitre, Y., ...
We have performed magnetotransport measurements on La2/3Sr1/3MnO3 / SrTiO3 / La2/3Sr1/3MnO3 magnetic tunnel junctions. A magnetoresistance ratio of more than 1800 % is obtained at 4K, from which we...
Switching the magnetic configuration of a spin valve by current induced domain wall motion (2002)
Grollier, J., Lacour, D., Cros, V., Hamzic, A., Vaures, A., Fert, A., ...
We present experimental results on the displacement of a domain wall by injection of a dc current through the wall. The samples are 1 micron wide long stripes of a CoO/Co/Cu/NiFe classical spin valve...
Mechanisms of spin-polarized current-driven magnetization switching (2002)
Zhang, S., Levy, P. M., Fert, A.
The mechanisms of the magnetization switching of magnetic multilayers driven by a current are studied by including exchange interaction between local moments and spin accumulation of conduction...
Besse, M, Cros, V, Barthelemy, A, Jaffres, H, Vogel, J, Petroff, F, ...
Spin effects in ferromagnetic single-electron transistors (2000)
Barnas, J., Martinek, J., Michalek, G., Bulka, B. R., Fert, A.
Electron tunneling in ferromagnetic single-electron transistors is considered theoretically in the sequential tunneling regime. A new formalism is developed, which operates in a two-dimensional space...
Audouard, A., Kazoun, A., Broto, J. M., Marchal, G., Fert, A.
We have studied the magnetic field and temperature dependence of the conductivity of Au(x)Si(1-x)/Si (x=1, 0.54, 0.46, and 0.41) and Cu/Si multilayers. The individual layer thicknesses were from 9 to...
Spin effects in single-electron tunneling in magnetic junctions (1998)
Martinek, J., Barnas, J., Michalek, G., Bulka, B. R., Fert, A.
Spin dependent single electron tunneling in ferromagnetic double junctions is analysed theoretically in the limit of sequential tunneling. The influence of discrete energy spectrum of the central...
Magnétorésistance géante dans les nanostructures magnétiques (1997)
Fert, A., Morel, R., Barthélémy, A., Cros, V., ...
Depuis sa découverte dans les multicouches magnétiques, la magnétorésistance géante est un des champs de recherches les plus actifs en magnétisme, tant fondamental qu'appliqué. Au départ, sa...
Magnétorésistance géante dans les nanostructures magnétiques (1997)
Fert, A., Morel, R., Barthélémy, A., Cros, V., ...
Depuis sa découverte dans les multicouches magnétiques, la magnétorésistance géante est un des champs de recherches les plus actifs en magnétisme, tant fondamental qu'appliqué. Au départ, sa...
Magnétorésistance géante dans les nanostructures magnétiques (1997)
Fert, A., Morel, R., Barthélémy, A., Cros, V., ...
Depuis sa découverte dans les multicouches magnétiques, la magnétorésistance géante est un des champs de recherches les plus actifs en magnétisme, tant fondamental qu'appliqué. Au départ, sa...
Ben Youssef, J., Le Gall, H., Bouziane, K., El Harfaoui, M., Koshkina, O., Desvignes, J., ...
Les objectifs du présent travail sont de deux ordres : d'abord obtenir le rapport de MRG, ΔR/R, le plus élevé dans des multicouches Co/Cu élaborées à partir du procédé inhabituel de...
Ben Youssef, J., Le Gall, H., Bouziane, K., El Harfaoui, M., Koshkina, O., Desvignes, J., ...
Les objectifs du présent travail sont de deux ordres : d'abord obtenir le rapport de MRG, ΔR/R, le plus élevé dans des multicouches Co/Cu élaborées à partir du procédé inhabituel de...
Ben Youssef, J., Le Gall, H., Bouziane, K., El Harfaoui, M., Koshkina, O., Desvignes, J., ...
Les objectifs du présent travail sont de deux ordres : d'abord obtenir le rapport de MRG, ΔR/R, le plus élevé dans des multicouches Co/Cu élaborées à partir du procédé inhabituel de...
About C in YBaCuO powders and textured ceramics (1994)
Pellerin, N., Gotor, F., Odier, P., Ayache, J., Fert, A., Cazy, E., ...
About C in YBaCuO powders and textured ceramics (1994)
Pellerin, N., Gotor, F., Odier, P., Ayache, J., Fert, A., Cazy, E., ...
Pizzini, S., Baudelet, F., Fontaine, A., Chandesris, D., Magnan, H., Fert, A., ...
Pas de Résumé disponible
Pizzini, S., Baudelet, F., Fontaine, A., Chandesris, D., Magnan, H., Fert, A., ...
Pas de Résumé disponible
Pizzini, S., Baudelet, F., Fontaine, A., Chandesris, D., Magnan, H., Fert, A., ...
Pas de Résumé disponible
OXYGEN SELF-DIFFUSION IN YBa2Cu3O7-x : GRAIN-BOUNDARY EFFECTS (1990)
Sabras, J., Dolin, C., Ayache, J., Monty, C., Maury, R., Fert, A.
Polycristal1ine YBa2Cu3O7-x samples with different grain size have been elaborated by sintering. Magnetic properties exhibit a strong dependence on grain size. Oxygen self-diffusion experiments in...
OXYGEN SELF-DIFFUSION IN YBa2Cu3O7-x : GRAIN-BOUNDARY EFFECTS (1990)
Sabras, J., Dolin, C., Ayache, J., Monty, C., Maury, R., Fert, A.
Polycristal1ine YBa2Cu3O7-x samples with different grain size have been elaborated by sintering. Magnetic properties exhibit a strong dependence on grain size. Oxygen self-diffusion experiments in...
OXYGEN SELF-DIFFUSION IN YBa2Cu3O7-x : GRAIN-BOUNDARY EFFECTS (1990)
Sabras, J., Dolin, C., Ayache, J., Monty, C., Maury, R., Fert, A.
Polycristal1ine YBa2Cu3O7-x samples with different grain size have been elaborated by sintering. Magnetic properties exhibit a strong dependence on grain size. Oxygen self-diffusion experiments in...
DYNAMIC BEHAVIOUR OF SMALL γFe2O3 CRYSTALLITES. COMPARISON WITH SPIN GLASSES (1988)
Bendaoud, R., Fert, A., Tholence, J., Souletie, J., Rousset, A.
A.C. susceptibility measurements are performed on small γFe2O3 crystallites and analysed by the William Landel Ferry method used for viscoelastic polymers. Temperature dependence of the shift...
EFFECTS OF DIMENSIONALITY ON CRITICAL SCALING IN TWO ISING-TYPE INSULATING SPIN GLASSES (1988)
Bertrand, D., Fert, A., Redoulès, J., Ferré, J., Souletie, J.
We show that the Ising-type spin glass Fe0.35Mg0.65Br2 behaves as a 3d spin glass with a transition at finite Tc = 1.9 K. In contrast, we conclude for Fe0.3Mg0.7Cl2 to a transition at Tc = 0...
Fert, A., De Courtenay, N., Bouchiat, H.
While the existence of a phase transition at finite Tc is well admitted for Ising spin glasses in 3-dimensions, recent theoretical studies have proposed that T c is zero in Heisenberg spin glasses...
HALL EFFECT IN KONDO ALLOYS CeCu5-xAlx (1988)
Hamzic, A., Fert, A., Broto, J., Miljak, M., Bauer, E., Gratz, E.
We present Hall effect measurements on disordered Kondo alloys CeCu5-xAlx (x = 1 and x = 2). Our results at low temperatures cannot be accounted for by only skew scattering terms and support the...
HALL EFFECT IN THE HEAVY FERMION COMPOUND CePtSi (1988)
Hamzic, A., Broto, J., Fert, A., Miljak, M., Horn, S.
We present Hall effect measurements on the heavy fermion compound CePtSi. Above the neel temperature the behavior of the Hall effect is that generally observed in heavy fermion compounds and ascribed...
INFLUENCE OF ANISOTROPY ON THE CRITICAL TEMPERATURE OF METALLIC SPIN GLASSES (1988)
Fert, A., De Courtenay, N., Bouchiat, H.
We analyse the anisotropy dependence of the transition temperature of CuMn and AgMn spin glasses doped with Au or Pt impurities. We discuss the role of anisotropy in the phase transition of RKKY...
LOW TEMPERATURE PHASE TRANSITIONS IN THE HEAVY ELECTRON COMPOUND YbSb (1988)
Bonville, P., Broto, J., Fert, A., Gonzalez-Jimenez, F., Hamzic, A., Hulliger, F., ...
Using Mössbauer spectroscopy on 170Yb, we detected two low temperature phase transitions in the heavy electron pnictide YbSb. Below TN = 0.32 K antiferromagnetic ordering of Yb3+ develops, and...
MAGNETIC PROPERTIES OF (001)Fe/(001)Cr bcc MULTILAYERS (1988)
Fert, A., Etienne, P., Baibich, M., Broto, J., Chazelas, J., ...
We present magnetization, torque and magnetoresistance measurements on (001)Fe/(001)Cr multilayers prepared by MBE. Our main results are : a) evidence of antiferromagnetic interlayer couplings, b)...
STATIC AND DYNAMIC CRITICAL BEHAVIOUR OF THE SPIN GLASS Fe0.35Mg0.65Br2 (1988)
Vetel, J., Yahiaoui, M., Bertrand, D., Fert, A., Redoulès, J., Ferré, J.
We present results concerning the static and dynamic behaviour of the new Ising spin glass Fe0.35Mg0.65Br2. The analysis of the static magnetisation leads to conclude to a transition at finite Tc =...
THE HALL EFFECT IN KONDO SYSTEMS (1988)
Initial analyses of the Hall effect in Kondo systems were based on the Boltzmann equation with skew scattering in the limit of weak magnetic fields. We obtain a more realistic assessment by using the...
DYNAMIC BEHAVIOUR OF SMALL γFe2O3 CRYSTALLITES. COMPARISON WITH SPIN GLASSES (1988)
Bendaoud, R., Fert, A., Tholence, J., Souletie, J., Rousset, A.
A.C. susceptibility measurements are performed on small γFe2O3 crystallites and analysed by the William Landel Ferry method used for viscoelastic polymers. Temperature dependence of the shift...
EFFECTS OF DIMENSIONALITY ON CRITICAL SCALING IN TWO ISING-TYPE INSULATING SPIN GLASSES (1988)
Bertrand, D., Fert, A., Redoulès, J., Ferré, J., Souletie, J.
We show that the Ising-type spin glass Fe0.35Mg0.65Br2 behaves as a 3d spin glass with a transition at finite Tc = 1.9 K. In contrast, we conclude for Fe0.3Mg0.7Cl2 to a transition at Tc = 0...
Fert, A., De Courtenay, N., Bouchiat, H.
While the existence of a phase transition at finite Tc is well admitted for Ising spin glasses in 3-dimensions, recent theoretical studies have proposed that T c is zero in Heisenberg spin glasses...
HALL EFFECT IN KONDO ALLOYS CeCu5-xAlx (1988)
Hamzic, A., Fert, A., Broto, J., Miljak, M., Bauer, E., Gratz, E.
We present Hall effect measurements on disordered Kondo alloys CeCu5-xAlx (x = 1 and x = 2). Our results at low temperatures cannot be accounted for by only skew scattering terms and support the...
HALL EFFECT IN THE HEAVY FERMION COMPOUND CePtSi (1988)
Hamzic, A., Broto, J., Fert, A., Miljak, M., Horn, S.
We present Hall effect measurements on the heavy fermion compound CePtSi. Above the neel temperature the behavior of the Hall effect is that generally observed in heavy fermion compounds and ascribed...
INFLUENCE OF ANISOTROPY ON THE CRITICAL TEMPERATURE OF METALLIC SPIN GLASSES (1988)
Fert, A., De Courtenay, N., Bouchiat, H.
We analyse the anisotropy dependence of the transition temperature of CuMn and AgMn spin glasses doped with Au or Pt impurities. We discuss the role of anisotropy in the phase transition of RKKY...
LOW TEMPERATURE PHASE TRANSITIONS IN THE HEAVY ELECTRON COMPOUND YbSb (1988)
Bonville, P., Broto, J., Fert, A., Gonzalez-Jimenez, F., Hamzic, A., Hulliger, F., ...
Using Mössbauer spectroscopy on 170Yb, we detected two low temperature phase transitions in the heavy electron pnictide YbSb. Below TN = 0.32 K antiferromagnetic ordering of Yb3+ develops, and...
MAGNETIC PROPERTIES OF (001)Fe/(001)Cr bcc MULTILAYERS (1988)
Fert, A., Etienne, P., Baibich, M., Broto, J., Chazelas, J., ...
We present magnetization, torque and magnetoresistance measurements on (001)Fe/(001)Cr multilayers prepared by MBE. Our main results are : a) evidence of antiferromagnetic interlayer couplings, b)...
STATIC AND DYNAMIC CRITICAL BEHAVIOUR OF THE SPIN GLASS Fe0.35Mg0.65Br2 (1988)
Vetel, J., Yahiaoui, M., Bertrand, D., Fert, A., Redoulès, J., Ferré, J.
We present results concerning the static and dynamic behaviour of the new Ising spin glass Fe0.35Mg0.65Br2. The analysis of the static magnetisation leads to conclude to a transition at finite Tc =...
THE HALL EFFECT IN KONDO SYSTEMS (1988)
Initial analyses of the Hall effect in Kondo systems were based on the Boltzmann equation with skew scattering in the limit of weak magnetic fields. We obtain a more realistic assessment by using the...
DYNAMIC BEHAVIOUR OF SMALL γFe2O3 CRYSTALLITES. COMPARISON WITH SPIN GLASSES (1988)
Bendaoud, R., Fert, A., Tholence, J., Souletie, J., Rousset, A.
A.C. susceptibility measurements are performed on small γFe2O3 crystallites and analysed by the William Landel Ferry method used for viscoelastic polymers. Temperature dependence of the shift...
EFFECTS OF DIMENSIONALITY ON CRITICAL SCALING IN TWO ISING-TYPE INSULATING SPIN GLASSES (1988)
Bertrand, D., Fert, A., Redoulès, J., Ferré, J., Souletie, J.
We show that the Ising-type spin glass Fe0.35Mg0.65Br2 behaves as a 3d spin glass with a transition at finite Tc = 1.9 K. In contrast, we conclude for Fe0.3Mg0.7Cl2 to a transition at Tc = 0...
Fert, A., De Courtenay, N., Bouchiat, H.
While the existence of a phase transition at finite Tc is well admitted for Ising spin glasses in 3-dimensions, recent theoretical studies have proposed that T c is zero in Heisenberg spin glasses...
HALL EFFECT IN KONDO ALLOYS CeCu5-xAlx (1988)
Hamzic, A., Fert, A., Broto, J., Miljak, M., Bauer, E., Gratz, E.
We present Hall effect measurements on disordered Kondo alloys CeCu5-xAlx (x = 1 and x = 2). Our results at low temperatures cannot be accounted for by only skew scattering terms and support the...
HALL EFFECT IN THE HEAVY FERMION COMPOUND CePtSi (1988)
Hamzic, A., Broto, J., Fert, A., Miljak, M., Horn, S.
We present Hall effect measurements on the heavy fermion compound CePtSi. Above the neel temperature the behavior of the Hall effect is that generally observed in heavy fermion compounds and ascribed...
INFLUENCE OF ANISOTROPY ON THE CRITICAL TEMPERATURE OF METALLIC SPIN GLASSES (1988)
Fert, A., De Courtenay, N., Bouchiat, H.
We analyse the anisotropy dependence of the transition temperature of CuMn and AgMn spin glasses doped with Au or Pt impurities. We discuss the role of anisotropy in the phase transition of RKKY...
LOW TEMPERATURE PHASE TRANSITIONS IN THE HEAVY ELECTRON COMPOUND YbSb (1988)
Bonville, P., Broto, J., Fert, A., Gonzalez-Jimenez, F., Hamzic, A., Hulliger, F., ...
Using Mössbauer spectroscopy on 170Yb, we detected two low temperature phase transitions in the heavy electron pnictide YbSb. Below TN = 0.32 K antiferromagnetic ordering of Yb3+ develops, and...
MAGNETIC PROPERTIES OF (001)Fe/(001)Cr bcc MULTILAYERS (1988)
Fert, A., Etienne, P., Baibich, M., Broto, J., Chazelas, J., ...
We present magnetization, torque and magnetoresistance measurements on (001)Fe/(001)Cr multilayers prepared by MBE. Our main results are : a) evidence of antiferromagnetic interlayer couplings, b)...
STATIC AND DYNAMIC CRITICAL BEHAVIOUR OF THE SPIN GLASS Fe0.35Mg0.65Br2 (1988)
Vetel, J., Yahiaoui, M., Bertrand, D., Fert, A., Redoulès, J., Ferré, J.
We present results concerning the static and dynamic behaviour of the new Ising spin glass Fe0.35Mg0.65Br2. The analysis of the static magnetisation leads to conclude to a transition at finite Tc =...
THE HALL EFFECT IN KONDO SYSTEMS (1988)
Initial analyses of the Hall effect in Kondo systems were based on the Boltzmann equation with skew scattering in the limit of weak magnetic fields. We obtain a more realistic assessment by using the...
De Courtenay, N., Bouchiat, H., Hurdequint, H., Fert, A.
In this paper, we present non-linear magnetization measurements as a function of field at different temperatures T ≽ Tg for CuMn 0.2 % and AgMn 0.5 %, alloys doped with various amounts of gold...
De Courtenay, N., Bouchiat, H., Hurdequint, H., Fert, A.
In this paper, we present non-linear magnetization measurements as a function of field at different temperatures T ≽ Tg for CuMn 0.2 % and AgMn 0.5 %, alloys doped with various amounts of gold...
De Courtenay, N., Bouchiat, H., Hurdequint, H., Fert, A.
In this paper, we present non-linear magnetization measurements as a function of field at different temperatures T ≽ Tg for CuMn 0.2 % and AgMn 0.5 %, alloys doped with various amounts of gold...
Helimagnetic structure in diluted Y-Gd alloys (1985)
Brown, P.J., Caudron, R., Fert, A., Givord, D., Pureur, P.
Neutron scattering studies on Y-Gd 2 and 3 at. % single crystals show a helimagnetic ordering to occur below Néel temperatures of 7 and 12 K respectively. The same value of the propagation vector...
Relaxation of ytterbium in palladium (1985)
Fert, A., Levy, P.M., Bonville, P.
We show that a satisfactory fit to the temperature dependence of the relaxation rate of ytterbium in palladium can be obtained by including the aspherical part of the direct Coulomb interaction...
Helimagnetic structure in diluted Y-Gd alloys (1985)
Brown, P.J., Caudron, R., Fert, A., Givord, D., Pureur, P.
Neutron scattering studies on Y-Gd 2 and 3 at. % single crystals show a helimagnetic ordering to occur below Néel temperatures of 7 and 12 K respectively. The same value of the propagation vector...
Relaxation of ytterbium in palladium (1985)
Fert, A., Levy, P.M., Bonville, P.
We show that a satisfactory fit to the temperature dependence of the relaxation rate of ytterbium in palladium can be obtained by including the aspherical part of the direct Coulomb interaction...
Helimagnetic structure in diluted Y-Gd alloys (1985)
Brown, P.J., Caudron, R., Fert, A., Givord, D., Pureur, P.
Neutron scattering studies on Y-Gd 2 and 3 at. % single crystals show a helimagnetic ordering to occur below Néel temperatures of 7 and 12 K respectively. The same value of the propagation vector...
Relaxation of ytterbium in palladium (1985)
Fert, A., Levy, P.M., Bonville, P.
We show that a satisfactory fit to the temperature dependence of the relaxation rate of ytterbium in palladium can be obtained by including the aspherical part of the direct Coulomb interaction...
Irreversibility onset in spin glasses from torque measurements (1984)
Campbell, I.A., De Courtenay, N., Fert, A.
Improved torque measurements on CuMn and AgMn alloys show a field independent torque onset temperature for fields from 0.5 kG to 9 kG. This result is compatible with mean field transverse freezing...
Irreversibility onset in spin glasses from torque measurements (1984)
Campbell, I.A., De Courtenay, N., Fert, A.
Improved torque measurements on CuMn and AgMn alloys show a field independent torque onset temperature for fields from 0.5 kG to 9 kG. This result is compatible with mean field transverse freezing...
Irreversibility onset in spin glasses from torque measurements (1984)
Campbell, I.A., De Courtenay, N., Fert, A.
Improved torque measurements on CuMn and AgMn alloys show a field independent torque onset temperature for fields from 0.5 kG to 9 kG. This result is compatible with mean field transverse freezing...
Fert, A., Senoussi, S., Arvanitis, D.
We develop some ideas on the freezing of the macroscopic anisotropy energy of spin glasses and introduce the concepts of thermo-remanent anisotropy (TRA) and isothermal remanent anisotropy (IRA). We...
Fert, A., Senoussi, S., Arvanitis, D.
We develop some ideas on the freezing of the macroscopic anisotropy energy of spin glasses and introduce the concepts of thermo-remanent anisotropy (TRA) and isothermal remanent anisotropy (IRA). We...
Fert, A., Senoussi, S., Arvanitis, D.
We develop some ideas on the freezing of the macroscopic anisotropy energy of spin glasses and introduce the concepts of thermo-remanent anisotropy (TRA) and isothermal remanent anisotropy (IRA). We...
HALL EFFECT IN SILVER - RARE EARTH AMORPHOUS ALLOYS (1980)
Asomoza, R., Bieri, J., Fert, A., Boucher, B., Ousset, J.
No abstract available
RESISTIVITY AND MAGNETORESISTANCE OF SILVER-RARE-EARTH AMORPHOUS ALLOYS (1980)
Ousset, J., Ulmet, J., Asomoza, R., Bieri, J., Askenazy, S., Fert, A.
We have studied the resistivity and the magnetoresistance of Ag1-x Rx and Ag0.5 Lu0.5-x Rx amorphous alloys prepared by sputtering (R = rare-earth). Measurements have been performed in pulsed field...
HALL EFFECT IN SILVER - RARE EARTH AMORPHOUS ALLOYS (1980)
Asomoza, R., Bieri, J., Fert, A., Boucher, B., Ousset, J.
No abstract available
RESISTIVITY AND MAGNETORESISTANCE OF SILVER-RARE-EARTH AMORPHOUS ALLOYS (1980)
Ousset, J., Ulmet, J., Asomoza, R., Bieri, J., Askenazy, S., Fert, A.
We have studied the resistivity and the magnetoresistance of Ag1-x Rx and Ag0.5 Lu0.5-x Rx amorphous alloys prepared by sputtering (R = rare-earth). Measurements have been performed in pulsed field...
HALL EFFECT IN SILVER - RARE EARTH AMORPHOUS ALLOYS (1980)
Asomoza, R., Bieri, J., Fert, A., Boucher, B., Ousset, J.
No abstract available
RESISTIVITY AND MAGNETORESISTANCE OF SILVER-RARE-EARTH AMORPHOUS ALLOYS (1980)
Ousset, J., Ulmet, J., Asomoza, R., Bieri, J., Askenazy, S., Fert, A.
We have studied the resistivity and the magnetoresistance of Ag1-x Rx and Ag0.5 Lu0.5-x Rx amorphous alloys prepared by sputtering (R = rare-earth). Measurements have been performed in pulsed field...
High field magnetoresistance of silver containing rare-earth impurities (1979)
Ousset, J., Creuzet, G., Fert, A.
We present magnetoresistance measurements in pulsed fields (300 kG) on Ag : Dy, Ag : Ho and Ag : Tm alloys together with the analysis of the contributions from quadrupole and exchange scattering.
Non axial electric field gradients in amorphous rare-earth alloys (1979)
We discuss the problem of the crystal field in amorphous RE alloys and the effect of non-axial terms.
Transport properties of amorphous rare-earth alloys (1979)
Asomoza, R., Campbell, I., Fert, A.
We discuss several aspects of the transport properties of RE amorphous alloys : contributions from magnetic ordering to the resistivity, magnetoresistance and its anisotropy, low temperature...
High field magnetoresistance of silver containing rare-earth impurities (1979)
Ousset, J., Creuzet, G., Fert, A.
We present magnetoresistance measurements in pulsed fields (300 kG) on Ag : Dy, Ag : Ho and Ag : Tm alloys together with the analysis of the contributions from quadrupole and exchange scattering.
Non axial electric field gradients in amorphous rare-earth alloys (1979)
We discuss the problem of the crystal field in amorphous RE alloys and the effect of non-axial terms.
Transport properties of amorphous rare-earth alloys (1979)
Asomoza, R., Campbell, I., Fert, A.
We discuss several aspects of the transport properties of RE amorphous alloys : contributions from magnetic ordering to the resistivity, magnetoresistance and its anisotropy, low temperature...
High field magnetoresistance of silver containing rare-earth impurities (1979)
Ousset, J., Creuzet, G., Fert, A.
We present magnetoresistance measurements in pulsed fields (300 kG) on Ag : Dy, Ag : Ho and Ag : Tm alloys together with the analysis of the contributions from quadrupole and exchange scattering.
Non axial electric field gradients in amorphous rare-earth alloys (1979)
We discuss the problem of the crystal field in amorphous RE alloys and the effect of non-axial terms.
Transport properties of amorphous rare-earth alloys (1979)
Asomoza, R., Campbell, I., Fert, A.
We discuss several aspects of the transport properties of RE amorphous alloys : contributions from magnetic ordering to the resistivity, magnetoresistance and its anisotropy, low temperature...
TRANSPORT DANS LES ALLIAGES MAGNÉTIQUES : LES ASYMÉTRIES DE DIFFUSION (1978)
La diffusion d'électrons de conduction par des impuretés magnétiques présente diverses asymétries : la section efficace de diffusion est anisotrope (c'est-à-dire différente selon l'orientation...
TRANSPORT DANS LES ALLIAGES MAGNÉTIQUES : LES ASYMÉTRIES DE DIFFUSION (1978)
La diffusion d'électrons de conduction par des impuretés magnétiques présente diverses asymétries : la section efficace de diffusion est anisotrope (c'est-à-dire différente selon l'orientation...
TRANSPORT DANS LES ALLIAGES MAGNÉTIQUES : LES ASYMÉTRIES DE DIFFUSION (1978)
La diffusion d'électrons de conduction par des impuretés magnétiques présente diverses asymétries : la section efficace de diffusion est anisotrope (c'est-à-dire différente selon l'orientation...
TRANSPORT PROPERTIES OF FERROMAGNETIC TRANSITION METALS (1971)
We review recent experiments showing that electrical conduction in transition ferromagnetics at low temperature is by two currents of spin ↑ and spin ↓ electrons in parallel, mixed by...
TRANSPORT PROPERTIES OF FERROMAGNETIC TRANSITION METALS (1971)
We review recent experiments showing that electrical conduction in transition ferromagnetics at low temperature is by two currents of spin ↑ and spin ↓ electrons in parallel, mixed by...
TRANSPORT PROPERTIES OF FERROMAGNETIC TRANSITION METALS (1971)
We review recent experiments showing that electrical conduction in transition ferromagnetics at low temperature is by two currents of spin ↑ and spin ↓ electrons in parallel, mixed by...