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28 March 2024
 
  » arxiv » cond-mat/9303023

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Towards an experimental measure of the number of metastable states in spin-glasses ?
J.P. Bouchaud ; E. Vincent ; J. Hammann ;
Date 12 Mar 1993
Journal J. Phys. I France 4, 139 (1994)
Subject cond-mat
AbstractWe show that an ’ergodic’ time scale can be extracted from the aging experiments on spin-glasses. This is the time for which a significant fraction of the metastable states have been visited. Experiments suggest that the number of metastable states per independent subsystem is $simeq 10^{12}-10^{14}$. For our insulating spin-glass $({ m CdCr}_{1.7} { m In}_{0.3} { m S}_4)$ this number doubles when the temperature is lowered by 1K, but is roughly constant for the metallic sample (Ag:Mn 2.6%).
Source arXiv, cond-mat/9303023
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