Internal energy and specific antiferromagnetic heat in a ferromagnetic- double layers

作     者：姜伟 国安邦 

作者机构：College of Sciences Shenyang University of Technology Shenyang 110023 China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2007年第16卷第12期

页      面：3832-3836页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：Project supported by the Natural Science Foundation of Liaoning Province (Grant No 20041021)  the Scientific Foundation of the Educational Department of Liaoning Province (Grant No 2004C006) and the Postdoctoral Foundation of Shenyang University of Technology 

主　　题：spin-wave theory ferromagnetic-antiferromagnetic double layers internal energy specific heat 

摘      要：The internal energy and specific heat of a Heisenberg ferro- antiferromagnetic double-layer system are studied by using spin-wave theory and the retarded Green function method at low temperatures. Numerical results show that the antiferromagnetic intralayer coupling J2 has an important influence on internal energy and specific heat for a four-sublattice system with antiferromagnetic （or ferrimagnetic） interlayer couplings.