摘要
利用数值密度矩阵重正化群方法研究了一维反铁磁海森堡系统的磁化曲线,分析了不同阻挫时的磁化特性,着重描述了磁化曲线中出现的中场尖奇点,并分析其产生机理.
The magnetization of 1-d AF Heisenberg system was studied using the numerical Density Matrix Renormalization Group（DMRG）technique.The magnetization curves at different frustration were analyzed.In particular,the middle field cusp singularity appears in the magnetization curves was described.
出处
《泰山学院学报》
2010年第3期60-64,共5页
Journal of Taishan University
关键词
密度矩阵重正化群
海森堡系统
磁化曲线
中场尖奇点
Density Matrix Renormalization Group
Heisenberg system
magnetization curve
middle field cusp singularity
