End of aging in a complex system

Aging phenomena in complex systems have been used as an important tool to investigate the physics of complexity. In particular, aging effects in spin glasses, measured using the thermoremanent magnetization decays, have been instrumental as a probe of complex equilibrium and nonequilibrium dynamics....

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Bibliographic Details
Published inPhysical review letters Vol. 97; no. 5; p. 057201
Main Authors Kenning, G G, Rodriguez, G F, Orbach, R
Format Journal Article
LanguageEnglish
Published United States 04.08.2006
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Summary:Aging phenomena in complex systems have been used as an important tool to investigate the physics of complexity. In particular, aging effects in spin glasses, measured using the thermoremanent magnetization decays, have been instrumental as a probe of complex equilibrium and nonequilibrium dynamics. In this Letter, we show that aging found in spin glass materials has a finite lifetime. After the aging part of the decay has ended, we find a post-aging decay which is apparently logarithmic in nature. This decay is independent of the waiting time and part of the same mechanism that produces aging.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.97.057201