Spin glass dynamics in RKKY interacting disordered magnetic system  

作　　者：张开成 宋朋云 

机构地区：[1]Department of Physics,Bohai University [2]School of Science,Henan University of Science and Technology

出　　处：《Chinese Physics B》2010年第9期505-509,共5页中国物理B（英文版）

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.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.

关 键 词：RKKY spin glass AGING MEMORY 

分 类 号：O469[理学—凝聚态物理]