Dynamic Correlation Length Growth in Superspin Glass: Bridging Experiments and Simulations

Autor: Nakamae, Sawako, Crauste-Thibierge, Caroline, L'Hote, Denis, Vincent, Eric, Dubois, Emmanuelle, Dupuis, Vincent, Perzynski, Regine

Interacting magnetic nanoparticles display a wide variety of magnetic behaviors that are now being gathered in the emerging field of 'supermagnetism.' We have investigated how the out-of-equilibrium dynamics in the disordered superspin glass (SSG) st

Externí odkaz: http://arxiv.org/abs/1210.2524

Superspin glass aging behavior in textured and nontextured frozen ferrofluid

Autor: Nakamae, Sawako, Dubois, Emmanuelle, Dupuis, Vincent, L'Hôte, Denis, Perzynski, Régine, Vincent, Eric, Thibierge, Caroline

Publikováno v: MMM-Intermag Conference, United States (2010)

The effect of magnetic anisotropy-axis alignment of individual nanoparticles on the collective aging behavior in the superspin glass state of a frozen ferrofluid has been investigated. The ferrofluid studied here consists of maghemite nanoparticles (

Externí odkaz: http://arxiv.org/abs/1009.2609

French Roadmap for complex Systems 2008-2009

Autor: Bourgine, Paul, Chavalarias, David, Perrier, Edith, Amblard, Frederic, Arlabosse, Francois, Auger, Pierre, Baillon, Jean-Bernard, Barreteau, Olivier, Baudot, Pierre, Bouchaud, Elisabeth, Amor, Soufian Ben, Berry, Hugues, Bertelle, Cyrille, Berthod, Marc, Beslon, Guillaume, Biroli, Giulio, Bonamy, Daniel, Bourcier, Daniele, Brodu, Nicolas, Bui, Marc, Burnod, Yves, Chapron, Bertrand, Christophe, Catherine, Clement, Bruno, Coatrieux, Jean-Louis, Cointet, Jean-Philippe, Dagrain, Valerie, Dauchot, Katia, Dauchot, Olivier, Daviaud, Francois, De Monte, Silvia, Deffuant, Guillaume, Degond, Pierre, Delahaye, Jean-Paul, Doursat, Rene, D'Ovidio, Francesco, Dubois, Marc, Dubruelle, Berengere, Dutreix, Marie, Faivre, Robert, Farge, Emmanuel, Flandrin, Patrick, Franceschelli, Sara, Gaucherel, Cedric, Gaudin, Jean-Pierre, Ghil, Michael, Giavitto, Jean-Louis, Ginelli, Francesco, Ginot, Vincent, Houllier, Francois, Hubert, Bernard, Jensen, Pablo, Jullien, Ludovic, Kapoula, Zoi, Krob, Daniel, Ladieu, Francois, Lang, Gabriel, Lavelle, Chrsitophe, Bivic, Andre Le, Leca, Jean-Pierre, Lecerf, Christophe, Legrain, Pierre, L'hote, Denis, Loireau, Maud, Mangin, Jean-Francois, Monga, Olivier, Morvan, Michel, Muller, Jean-Pierre, Negrutiu, Ioan, Peyreiras, Nadine, Pumain, Denise, Radulescu, Ovidiu, Sallantin, Jean, Sanchis, Eric, Schertzer, Daniel, Schoenauer, Marc, Sebag, Michele, Simonet, Eric, Six, Adrien, Tarissan, Fabien, Vincent, Patrick

This second issue of the French Complex Systems Roadmap is the outcome of the Entretiens de Cargese 2008, an interdisciplinary brainstorming session organized over one week in 2008, jointly by RNSC, ISC-PIF and IXXI. It capitalizes on the first roadm

Externí odkaz: http://arxiv.org/abs/0907.2221

Experimental search for dynamic heterogeneities in molecular glass formers

Autor: Ladieu, François, Thibierge, Caroline, L'Hôte, Denis

Publikováno v: Journal of Physics: Condensed Matter 19, 20 (2007) 205138

We have measured the linear dielectric susceptibility of two molecular glass formers close to Tg in order to estimate the size of the dynamically correlated clusters of molecules which are expected to govern the physics of glass formation. This size

Externí odkaz: http://arxiv.org/abs/0707.3616

Direct experimental evidence of a growing length scale accompanying the glass transition

Autor: Berthier, Ludovic, Biroli, Giulio, Bouchaud, Jean-Philippe, Cipelletti, Luca, Masri, Djamel El, L'Hôte, Denis, Ladieu, Francois, Pierno, Matteo

Publikováno v: Science 310, 1797 (2005)

Understanding glass formation is a challenge because the existence of a true glass state, distinct from liquid and solid, remains elusive: Glasses are liquids that have become too viscous to flow. An old idea, as yet unproven experimentally, is that

Externí odkaz: http://arxiv.org/abs/cond-mat/0512379