Non-vanishing hysteresis in a spin-glass

作者: H. Mamiya * , M. Ohnuma , I. Nakatani , S. Nimori , T. Furubayashi

DOI: 10.1080/09500830500153735

关键词: MagnetizationPhase (matter)Spin glassCondensed matter physicsHysteresisMagnetic hysteresisSimple (philosophy)Thermodynamic equilibriumSimple questionChemistry

摘要: From ancient rudimentary investigations through modern intensive research, a seemingly simple question regarding glassy materials remains unanswered: do history-dependent phenomena disappear when system relaxes sufficiently? The present study gives an answer by applying indirect but approaches to canonical spin-glass phase of CuMn alloy. We find that the zero-field-cooled magnetization equilibrium state never matches field-cooled magnetization, even if observation continues indefinitely. This finding clearly demonstrates permanency hysteresis, which has been predicted recent theories for spin-glasses.

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