Universal scattering behavior of co-assembled nanoparticle-polymer clusters (2009)
Fresnais, J., Qi, L., Sandre, O., ...
Water-soluble clusters made from 7 nm inorganic nanoparticles have been investigated by small-angle neutron scattering. The internal structure factor of the clusters was derived and exhibited a...
Fresnais, J., Frka-Petesic, B., Sandre, O., Perzynski, R.
A paradigm proposed recently by Boal et al. (A.K. Boal et al., Nature 404, 746-748, 2000) deals with the possibility to use inorganic nanoparticles as building blocks for the design and fabrication...
Reorientation kinetics of superparamagnetic nanostructured rods (2008)
Fresnais, J., Frka-Petesic, B., Sandre, O., Perzynski, R.
The attractive interactions between oppositely charged species (colloids, macromolecules etc) dispersed in water are strong, and the direct mixing of solutions containing such species generally...
Spin glass behavior in an interacting gamma-Fe2O3 nanoparticle system (2008)
Parker, D., Dupuis, V., Ladieu, F., Dubois, E., Perzynski, R., ...
In this paper we investigate the superspin glass behavior of a concentrated assembly of interacting maghemite nanoparticles and compare it to that of canonical atomic spin glass systems. ac versus...
Spin glass behavior in an interacting gamma-Fe2O3 nanoparticle system (2008)
Parker, D., Dupuis, V., Ladieu, F., Dubois, E., Perzynski, R., ...
In this paper we investigate the superspin glass behavior of a concentrated assembly of interacting maghemite nanoparticles and compare it to that of canonical atomic spin glass systems. ac versus...
Spin glass behavior in an interacting gamma-Fe2O3 nanoparticle system (2008)
Parker, D., Dupuis, V., Ladieu, F., Dubois, E., Perzynski, R., ...
In this paper we investigate the superspin glass behavior of a concentrated assembly of interacting maghemite nanoparticles and compare it to that of canonical atomic spin glass systems. ac versus...
Berejnov, V. V., Cabuil, V., Perzynski, R., Raikher, Yu. L.
A lyotropic ferrocolloid is synthesized by mixing of a cationic ferrofluid and potassium laurate/1-decanol/water ternary solution. Conditions of existence of a nematic phase in this mixture, other...
Capillary-gravity wave resistance in ordinary and magnetic fluids (2006)
Browaeys, J., Perzynski, R., Shliomis, M. I.
Wave resistance is the drag force associated to the emission of waves by a moving disturbance at a fluid free surface. In the case of capillary-gravity waves it undergoes a transition from zero to a...
Experimental investigation of superspin glass dynamics (2005)
Parker, D., Ladieu, F., Vincent, E., Mériguet, G., Dubois, E., Dupuis, V., ...
Magnetic nanoparticle assemblies in high concentrations can exhibit spin glass like properties in the low temperature phase due to the influence of strong dipolar interactions. To address the...
Mériguet, G., Dubois, E., Bourdon, A., Demouchy, G., Dupuis, V., Perzynski, R.
The structure and dynamics of concentrated aqueous magnetic fluids with tunable interparticle interaction are investigated by small angle neutron scattering and forced Rayleigh scattering. The...
Rotational dynamics of a ferrofluid near its hlass transition (2005)
Wandersman, E., Dupuis, V., Dubois, E., Mériguet, G., Perzynski, R.
Slow dynamics and aging in glassy magnetic fluids (2005)
Dupuis, V., Wandersman, E., Robert, A., Mériguet, G., Dubois, E., Perzynski, R.
Dynamical properties of ferrofluids in zero and applied magnetic fields (2005)
Mériguet, G., Dubois, E., Dupuis, V., Farago, B., Perzynski, R.
Sousa, M.H., Tourinho, F.A., Depeyrot, J., Dubois, E., Perzynski, R.
Nickel ferrite nanoparticles are synthesized bottom up and then peptized in aqueous media resulting in stable magnetic fluids. X-ray powder diffraction and transmission electronic microscopy permit...
Experimental investigation of superspin glass dynamics (2004)
Parker, D., Ladieu, F., Vincent, E., Mériguet, G., Dubois, E., Dupuis, V., ...
Overview of the phase diagram of ionic magnetic colloidal dispersions (2001)
Cousin,F., Dubois,E., Cabuil,V., Boué,F., Perzynski,R.
We study ionic magnetic colloidal dispersions, which are constituted of gamma-Fe2O3 nanoparticles dispersed in water, and stabilized with electrostatic interparticle repulsion. The phase diagram piV...
Surface waves and wave resistance in magnetic fluids (2001)
Browaeys,J., Perzynski,R., Shliomis,M. I.
We present here the experimental determination of the dispersion relation of surface waves of a ferrofluid submitted to a steady vertical magnetic field. The results are compared to a linear theory...
Capillary-gravity wave resistance in ordinary and magnetic fluids (1999)
Browaeys, J., Perzynski, R., Shliomis, M. I.
Wave resistance is the drag force associated to the emission of waves by a moving disturbance at a fluid free surface. In the case of capillary-gravity waves it undergoes a transition from zero to a...
Capillary-gravity wave resistance in ordinary and magnetic fluids (1999)
Browaeys, J., Perzynski, R., Shliomis, M. I.
Wave resistance is the drag force associated to the emission of waves by a moving disturbance at a fluid free surface. In the case of capillary-gravity waves it undergoes a transition from zero to a...
Capillary-gravity wave resistance in ordinary and magnetic fluids (1999)
Browaeys, J., Perzynski, R., Shliomis, M. I.
Wave resistance is the drag force associated to the emission of waves by a moving disturbance at a fluid free surface. In the case of capillary-gravity waves it undergoes a transition from zero to a...
Magnetic drop-sheath wetting transition of a ferrofluid on a wire (1988)
Frenois, C., Perzynski, R., Salin, D.
We study the spreading of a non wetting ferrofluid drop along a wire. The external control parameter of the magnetic fluid spreading is the magnetic field generated by the current in the conducting...
Magnetic drop-sheath wetting transition of a ferrofluid on a wire (1988)
Frenois, C., Perzynski, R., Salin, D.
We study the spreading of a non wetting ferrofluid drop along a wire. The external control parameter of the magnetic fluid spreading is the magnetic field generated by the current in the conducting...
Magnetic drop-sheath wetting transition of a ferrofluid on a wire (1988)
Frenois, C., Perzynski, R., Salin, D.
We study the spreading of a non wetting ferrofluid drop along a wire. The external control parameter of the magnetic fluid spreading is the magnetic field generated by the current in the conducting...
Experimental study of polymer interactions in a bad solvent (1987)
Perzynski, R., Delsanti, M., Adam, M.
The interactions between polymer chains in a bad solvent (polystyrene-cyclohexane at temperatures lower than 35 °C) was studied using light scattering intensity measurements. The results obtained in...
Magnetic transient birefringence of ferrofluids : particle size determination (1987)
Perzynski, R., Salin, D., Servais, J.
Relaxation time measurements of magnetically induced birefringence of ferrofluid solutions are performed with samples of various polydispersities. d H, the hydrodynamic diameter of particles deduced...
Experimental study of polymer interactions in a bad solvent (1987)
Perzynski, R., Delsanti, M., Adam, M.
The interactions between polymer chains in a bad solvent (polystyrene-cyclohexane at temperatures lower than 35 °C) was studied using light scattering intensity measurements. The results obtained in...
Magnetic transient birefringence of ferrofluids : particle size determination (1987)
Perzynski, R., Salin, D., Servais, J.
Relaxation time measurements of magnetically induced birefringence of ferrofluid solutions are performed with samples of various polydispersities. d H, the hydrodynamic diameter of particles deduced...
Experimental study of polymer interactions in a bad solvent (1987)
Perzynski, R., Delsanti, M., Adam, M.
The interactions between polymer chains in a bad solvent (polystyrene-cyclohexane at temperatures lower than 35 °C) was studied using light scattering intensity measurements. The results obtained in...
Magnetic transient birefringence of ferrofluids : particle size determination (1987)
Perzynski, R., Salin, D., Servais, J.
Relaxation time measurements of magnetically induced birefringence of ferrofluid solutions are performed with samples of various polydispersities. d H, the hydrodynamic diameter of particles deduced...
Dumas, J., Gorse, D., Perzynski, R., Salin, D.
The alignment of magnetic colloidal particles along a magnetic field induces a birefringence of the solution. As the magnetic field is switched off, this birefringence level relaxes to zero with a...
Dumas, J., Gorse, D., Perzynski, R., Salin, D.
The alignment of magnetic colloidal particles along a magnetic field induces a birefringence of the solution. As the magnetic field is switched off, this birefringence level relaxes to zero with a...
Dumas, J., Gorse, D., Perzynski, R., Salin, D.
The alignment of magnetic colloidal particles along a magnetic field induces a birefringence of the solution. As the magnetic field is switched off, this birefringence level relaxes to zero with a...
Intrinsic viscosity of flexible macromolecules : transition from theta to collapsed state (1984)
Perzynski, R., Delsanti, M., Adam, M.
Intrinsic viscosity measurements have been performed on polystyrene-cyclohexane system as a function of temperature T (T ≲ θ and as a function of molecular weight (8.2 x 10 4 ≤ Mw...
Intrinsic viscosity of flexible macromolecules : transition from theta to collapsed state (1984)
Perzynski, R., Delsanti, M., Adam, M.
Intrinsic viscosity measurements have been performed on polystyrene-cyclohexane system as a function of temperature T (T ≲ θ and as a function of molecular weight (8.2 x 10 4 ≤ Mw...
Intrinsic viscosity of flexible macromolecules : transition from theta to collapsed state (1984)
Perzynski, R., Delsanti, M., Adam, M.
Intrinsic viscosity measurements have been performed on polystyrene-cyclohexane system as a function of temperature T (T ≲ θ and as a function of molecular weight (8.2 x 10 4 ≤ Mw...
Dynamic measurements on polymer chain dimensions below the θ-temperature (1982)
Perzynski, R., Adam, M., Delsanti, M.
To observe the contraction of a flexible chain, quasi-elastic light scattering and viscosity experiments were performed below the θ-temperature. The systems used were monodisperse polystyrene...
Dynamic measurements on polymer chain dimensions below the θ-temperature (1982)
Perzynski, R., Adam, M., Delsanti, M.
To observe the contraction of a flexible chain, quasi-elastic light scattering and viscosity experiments were performed below the θ-temperature. The systems used were monodisperse polystyrene...
Dynamic measurements on polymer chain dimensions below the θ-temperature (1982)
Perzynski, R., Adam, M., Delsanti, M.
To observe the contraction of a flexible chain, quasi-elastic light scattering and viscosity experiments were performed below the θ-temperature. The systems used were monodisperse polystyrene...
Critical attenuation of sound of liquid helium in restricted geometries (1980)
Lambert, B., Perzynski, R., Salin, D.
We have measured the critical attenuation of sound of liquid helium four confined in porous Vycor glass. Around Tλ the experimental data are interpreted in terms of restricted geometry scaling....
Critical attenuation of sound of liquid helium in restricted geometries (1980)
Lambert, B., Perzynski, R., Salin, D.
We have measured the critical attenuation of sound of liquid helium four confined in porous Vycor glass. Around Tλ the experimental data are interpreted in terms of restricted geometry scaling....
Critical attenuation of sound of liquid helium in restricted geometries (1980)
Lambert, B., Perzynski, R., Salin, D.
We have measured the critical attenuation of sound of liquid helium four confined in porous Vycor glass. Around Tλ the experimental data are interpreted in terms of restricted geometry scaling....
High frequency critical attenuation of sound in He3-He4 mixtures near Tλ (1979)
Lambert, B., Perzynski, R., Salin, D.
We have measured the critical attenuation of sound at 1.1 GHz in He 3-He4 mixtures of 0.06, 0.20 and 0.24 molar He3 concentrations. The results above the superfluid-normal transition are scaled with...
High frequency critical attenuation of sound in He3-He4 mixtures near Tλ (1979)
Lambert, B., Perzynski, R., Salin, D.
We have measured the critical attenuation of sound at 1.1 GHz in He 3-He4 mixtures of 0.06, 0.20 and 0.24 molar He3 concentrations. The results above the superfluid-normal transition are scaled with...
High frequency critical attenuation of sound in He3-He4 mixtures near Tλ (1979)
Lambert, B., Perzynski, R., Salin, D.
We have measured the critical attenuation of sound at 1.1 GHz in He 3-He4 mixtures of 0.06, 0.20 and 0.24 molar He3 concentrations. The results above the superfluid-normal transition are scaled with...
HIGH FREQUENCIES CRITICAL ATTENUATION IN LIQUID HELIUM 4 (1978)
Lambert, B., Perzynski, R., Salin, D.
We have measured the critical attenuation of liquid helium from 0.55 to 1.7 GHz. For T < Tλ, the results are analysed as the sum of a fluctuation type scaling function and a small contribution...
HIGH FREQUENCIES CRITICAL ATTENUATION IN LIQUID HELIUM 4 (1978)
Lambert, B., Perzynski, R., Salin, D.
We have measured the critical attenuation of liquid helium from 0.55 to 1.7 GHz. For T < Tλ, the results are analysed as the sum of a fluctuation type scaling function and a small contribution...
HIGH FREQUENCIES CRITICAL ATTENUATION IN LIQUID HELIUM 4 (1978)
Lambert, B., Perzynski, R., Salin, D.
We have measured the critical attenuation of liquid helium from 0.55 to 1.7 GHz. For T < Tλ, the results are analysed as the sum of a fluctuation type scaling function and a small contribution...