自旋玻璃材料中弛豫机制的理论解释  

Theoretical Explanation on Relaxation Mechanism in Spin Glass

作　　者：胡靖华[1] 孙晓东[1] 胡耀祖[2] 

机构地区：[1]武汉理工大学理学院,武汉430070 [2]武汉理工大学信息工程学院,武汉430070

出　　处：《武汉理工大学学报》2010年第14期50-52,共3页Journal of Wuhan University of Technology

摘　　要：基于Ising自旋玻璃模型,讨论自旋玻璃体系中自旋发生反转的条件,并讨论自旋玻璃体系发生磁化强度驰豫存在临界温度Tc和临界磁场hc,得到了当h<hc和0<T<Tc时自旋玻璃材料磁化强度的驰豫公式。同时证明了在lnt/lnt0近似为1的情况下,这个公式与文献报道的磁化强度弛豫公式一致。According to Ising spin glass model,the condition of spin-flip in spin glass is discussed.The critical temperature Tc and critical magnetic field hc are also analyzed when magnetic-relaxation occurs in spin glass.Under the conditions of hhc and 0TTc,the equation of magnetic-relaxation in spin glass is obtained.Moreover,this equation coincides with the result in the pulished references when ln t/ln t0 is approximately equal to one.

关 键 词：自旋玻璃 驰豫 临界温度 临界磁场 

分 类 号：O482.5[理学—固体物理]