Dzyaloshinskii-Moriya interaction and magnetic ordering in 1D and 2D at nonzero T
Dzyaloshinskii-Moriya interaction and magnetic ordering in 1D and 2D at nonzero T
复制标题
dzyaloshinskii-moriya的相互作用和1D和2D的磁顺序在非零t处
DOI：
10.1209/0295-5075/106/47004
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
M. Kiwi
中科院分区：
文献类型：
--
作者：
F. Torres;D. Altbir;M. Kiwi
在海森堡哈密顿量中加入一个Dzyaloshinskiii-Moriya短程反对称相互作用，在非零温度下，在一维和二维中诱导自发磁化。结果表明，量子涨落减少了Dzyaloshinskiii-Moriya相互作用，但短程关联增加，从而允许在这些低维系统中存在的长程磁序。
The inclusion of a Dzyaloshinskii-Moriya short-range antisymmetric interaction in the Heisenberg Hamiltonian induces spontaneous magnetization, at nonzero temperatures, in one and two dimensions. It is shown that quantum fluctuations are reduced by the Dzyaloshinskii-Moriya interaction, but short-range correlations are increased, thereby allowing the existence of long-range magnetic order in these low-dimensional systems.