Spin glass dynamics in RKKY interacting disordered magnetic system

doi:10.1088/1674-1056/19/9/097105

中国物理B ›› 2010, Vol. 19 ›› Issue (9): 97105-097105.doi: 10.1088/1674-1056/19/9/097105

Spin glass dynamics in RKKY interacting disordered magnetic system

张开成¹, 宋朋云²

(1)Department of Physics, Bohai University, Jinzhou 121013, China; (2)School of Science, Henan University of Science and Technology, Luoyang 471003, China

收稿日期:2010-01-17 修回日期:2010-02-25 出版日期:2010-09-15 发布日期:2010-09-15

Spin glass dynamics in RKKY interacting disordered magnetic system

Zhang Kai-Cheng(张开成)^a)† and Song Peng-Yun(宋朋云)^b)

^a Department of Physics, Bohai University, Jinzhou 121013, China; ^b School of Science, Henan University of Science and Technology, Luoyang 471003, China

Received:2010-01-17 Revised:2010-02-25 Online:2010-09-15 Published:2010-09-15

摘要/Abstract

摘要： Using the dynamical Monte Carlo method we investigate the nonequilibrium effects in RKKY-coupling disordered spin glass. By the simulation we reproduce the well-known aging and memory phenomena and find the energy relaxation at a certain temperature happens only to the corresponding spins, which directly causes the nonequilibrium effects. Combining the master equation and the energy relaxation we analyse these phenomena and explain them from the dynamical perspective.

Abstract: Using the dynamical Monte Carlo method we investigate the nonequilibrium effects in RKKY-coupling disordered spin glass. By the simulation we reproduce the well-known aging and memory phenomena and find the energy relaxation at a certain temperature happens only to the corresponding spins, which directly causes the nonequilibrium effects. Combining the master equation and the energy relaxation we analyse these phenomena and explain them from the dynamical perspective.

Key words: RKKY, spin glass, aging, memory

中图分类号:

7115Q

张开成, 宋朋云. Spin glass dynamics in RKKY interacting disordered magnetic system[J]. 中国物理B, 2010, 19(9): 97105-097105.

Zhang Kai-Cheng(张开成) and Song Peng-Yun(宋朋云). Spin glass dynamics in RKKY interacting disordered magnetic system[J]. Chin. Phys. B, 2010, 19(9): 97105-097105.

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Spin glass dynamics in RKKY interacting disordered magnetic system

Spin glass dynamics in RKKY interacting disordered magnetic system

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