Zobrazeno 1 - 10
of 779
pro vyhledávání: '"Dupuis, V."'
Autor:
Carvallo, C., Fondet, A., Le Fèvre, R., Taverna, D., Guyodo, Y., Chebbi, I., Dupuis, V., Lagroix, F., Khelfallah, M., Guigner, J.-M., Guyot, F., Alphandéry, E., Juhin, A.
Publikováno v:
In Journal of Magnetism and Magnetic Materials 1 June 2023 575
Akademický článek
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Akademický článek
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The translational dynamics in a repulsive colloidal glass-former is probed by time-resolved X-ray Photon Correlation Spectroscopy. In this dense dispersion of charge-stabilized and magnetic nanoparticles, the interaction potential can be tuned, from
Externí odkaz:
http://arxiv.org/abs/1501.07208
Autor:
Linas, S., Magnin, Y., Poinsot, B., Boisron, O., Forster, G. D., Han, Z., Kalita, D., Bouchiat, V., Martinez, V., Fulcrand, R., Tournus, F., Dupuis, V., Rabilloud, F., Bardotti, L., Calvo, F.
Measurements and calculations have shown significant disagreement regarding the sign and variations of the thermal expansion coefficient (TEC) of graphene $\alpha(T)$. Here we report dedicated Raman scattering experiments conducted for graphene monol
Externí odkaz:
http://arxiv.org/abs/1411.7840
Autor:
Komatsu, Katsuyoshi, L'Hote, D., Nakamae, Sawako, Mosser, Vincent, Konczykowski, Marcin, Dubois, Emmanuelle, Dupuis, V., Perzynski, Régine
We present the experimental observation of the fluctuation-dissipation theorem (FDT) violation in an assembly of interacting magnetic nanoparticles in the low temperature superspin glass phase. The magnetic noise is measured with a two-dimension elec
Externí odkaz:
http://arxiv.org/abs/1010.4012
Autor:
Nakamae, Sawako, Thibierge, Caroline, Komatsu, Katsuyoshi, L'Hôte, Denis, Vincent, E., Dubois, Emmanuel, Dupuis, V., Perzynski, Régine
The effect of magnetic anisotropy-axis alignment on the superparamagnetic (SPM) and superspin glass (SSG) states in a frozen ferrofluid has been investigated. The ferrofluid studied here consists of maghemite nanoparticles (\gamma-Fe2O3, mean diamete
Externí odkaz:
http://arxiv.org/abs/1009.2610
Autor:
Komatsu, K., L'Hote, D., Nakamae, S., Ladieu, F., Mosser, V., Kerlain, A., Konczykowski, M., Dubois, E., Dupuis, V., Perzynski, R.
Publikováno v:
AIP Conf. Proc., 1129, 153-156 (2009)
We present our first experimental determination of the magnetic noise of a superspinglass made of < 1 pico-liter frozen ferrofluid. The measurements were performed with a local magnetic field sensor based on Hall microprobes operated with the spinnin
Externí odkaz:
http://arxiv.org/abs/1001.1637
Autor:
Wandersman, Elie, Dupuis, V., Dubois, Emmanuelle, Perzynski, Régine, Nakamae, S., Vincent, Eric
Publikováno v:
Europhysics Letters (EPL) 84 (2008) 37011
We report on zero field cooled magnetization relaxation experiments on a concen- trated frozen ferrofluid exhibiting a low temperature superspin glass transition. With a method initially developed for spin glasses, we investigate the field dependence
Externí odkaz:
http://arxiv.org/abs/0806.0564
Autor:
Parker, D., Dupuis, V., Ladieu, F., Bouchaud, J. -P., Dubois, E., Perzynski, R., Vincent, Eric
Publikováno v:
Physical Review B 77 (2008) 104428
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 temperature and frequency measurements show evidence
Externí odkaz:
http://arxiv.org/abs/0802.4184