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Journal articles
Aging, rejuvenation and memory phenomena in spin glasses
Abstract : In this paper, we review several important features of the out-of-equilibrium dynamics of spin glasses. Starting with the simplest experiments, we discuss the scaling laws used to describe the isothermal aging observed in spin glasses after a quench down to the low-temperature phase. We report in particular new results on the sub-aging behaviour of spin glasses. We then discuss the rejuvenation and memory effects observed when a spin glass is submitted to temperature variations during aging, from the point of view of both energy landscape pictures and real-space pictures. We highlight the fact that both approaches point out the necessity of hierarchical processes involved in aging. Finally, we report an investigation of the effect of small temperature variations on aging in spin glass samples with various anisotropies which indicates that this hierarchy depends on the spin anisotropy.
Cited literature [19 references]
https://hal-cea.archives-ouvertes.fr/cea-01396645
Contributor : Dominique Girard Connect in order to contact the contributor
Submitted on : Monday, November 14, 2016 - 4:58:56 PM
Last modification on : Friday, March 5, 2021 - 3:07:17 PM
Long-term archiving on: : Tuesday, March 21, 2017 - 3:05:11 PM
Contributor : Dominique Girard Connect in order to contact the contributor
Submitted on : Monday, November 14, 2016 - 4:58:56 PM
Last modification on : Friday, March 5, 2021 - 3:07:17 PM
Long-term archiving on: : Tuesday, March 21, 2017 - 3:05:11 PM
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