Nonmonotonic Relaxation in Systems with Reentrant-Type Interaction
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- Miyashita Seiji
- Department of Physics, The University of Tokyo CREST, JST
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- Tanaka Shu
- Department of Physics, The University of Tokyo CREST, JST
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- Hirano Masaki
- Department of Physics, The University of Tokyo CREST, JST
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説明
Recently, interesting nonmonotonic time evolution has been pointed out in the experiments by Jönsson et al. and Jonsson et al. and also in the numerical simulation by Takayama and Hukushima, where the magnetic susceptibility does not monotonically relax to the equilibrium value, but moves to the opposite side. We study the mechanism of this puzzling nonmonotonic dynamical property in a frustrated Ising model in which the equilibrium correlation exhibits nonmonotonic temperature dependence (reentrant type). We study the time evolution of the spin correlation function after a sudden change of temperature. We find that the value of the correlation function shows nonmonotonic relaxation, and we analyze the mechanisms of the nonmonotonicity. We also point out that competition between different configurations generally causes nonmonotonic relaxation.
収録刊行物
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- Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ
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Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ 76 (8), 083001-083001, 2007
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390282679170493696
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- NII論文ID
- 130005297015
- 110006366828
- 210000106816
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- NII書誌ID
- AA00704814
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 8863385
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可