Longitudinal Susceptibility of S=1/2 Low-Dimensional Heisenberg Ferromagnet in a Magnetic Field

作     者：CHEN Yuan XIANG Ying HU Ai-Yuan 

作者机构：Department of Physics Guangzhou University Guangzhou 510006 China School of Information Engineering Guangdong University of Technology Guangzhou 510006 China 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2008年第49卷第5期

页      面：1349-1352页

核心收录：

学科分类：080805[工学-电工理论与新技术] 080904[工学-电磁场与微波技术] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

基　　金：The project supported by National Natural Science Foundation of China under Grant No.10674033 the Natural Science Foundation of Guangdong Province under Grant No.04009519 

主　　题：Heisenberg ferromagnet longitudinal susceptibility Green's function 

摘      要：Longitudinal susceptibifity of the spin-1/2 low-dimensional Heisenberg ferromagnet in a magnetic field, is studied by the Green＇s function method within the random phase approximation. The static and dynamic longitudinal susceptibilities are calculated in the low- and high-field regions. Power laws for the position and height of the static susceptibility maximum are shown not to support the predictions of Landau theory.