首页> 外文期刊>Computer physics communications >Phase diagrams of the one-dimensional anisotropic extended Hubbard model
【24h】

Phase diagrams of the one-dimensional anisotropic extended Hubbard model

机译:一维各向异性扩展Hubbard模型的相图

获取原文
获取原文并翻译 | 示例
           

摘要

We investigate global structures of ground-state phase diagrams in a one-dimensional electron system with on-site and spin-dependent nearest-neighbor-site Coulomb interactions. We closely compare our numerical data for phase boundaries with their analytical expressions in limiting regions of interactions, and obtain a good agreement between them. On the other hand, we find non-trivial structures of phase diagrams in the intermediate-coupling region: For systems with weak easy-plain anisotropy, both bond-located spin- and charge-density-wave phases are realized. The latter contacts with the ferromagnetic phase stabilized in the strong-coupling region. When anisotropy becomes large, a direct transition between the former and ferromagnetic phase is observed.
机译:我们调查一维电子系统中具有现场和自旋相关的最近邻站点库仑相互作用的基态相图的整体结构。我们将相界的数值数据与它们在相互作用的有限区域中的解析表达式进行了比较,并在它们之间获得了良好的一致性。另一方面,我们在中间耦合区域中发现了相图的非平凡结构:对于具有弱易平原各向异性的系统,可以同时实现键定位的自旋和电荷密度波相。后者与在强耦合区域中稳定的铁磁相接触。当各向异性变大时,观察到前者和铁磁相之间的直接过渡。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号