Influence of Dzyaloshinskii-Moriya interaction and ballistic spin transport in the two and three-dimensional Heisenberg model

被引：5
|
作者：
Lima, L. S. [1 ]
机构：
[1] Ctr Fed Educ Tecnol Minas Gerais, Dept Fis, BR-30510000 Horizonte, MG, Brazil
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2018年 / 549卷
关键词：
TRANSVERSE MAGNETIC-FIELD; FLUCTUATION-INDUCED PHASE; ANTIFERROMAGNETIC CHAINS; INDUCED GAP; TEMPERATURE; CSCUCL3;
D O I：
10.1016/j.physc.2018.03.008
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We study the effect of Dzyaloshisnkii-Moriya interaction on spin transport in the two and three-dimensional Heisenberg antiferromagnetic models in the square lattice and cubic lattice respectively. For the three-dimensional model, we obtain a large peak for the spin conductivity and therefore a finite AC conductivity. For the two-dimensional model, we have gotten the AC spin conductivity tending to the infinity at omega -> 0 limit and a suave decreasing in the spin conductivity with increase of omega. We obtain a small influence of the Dzyaloshinskii-Moriya interaction on the spin conductivity in all cases analyzed.
引用
收藏
页码：147 / 149
页数：3
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