Spin dynamics simulations of topological magnon insulators: From transverse current correlation functions to the family of magnon Hall effects
Spin dynamics simulations of topological magnon insulators: From transverse current correlation functions to the family of magnon Hall effects
复制标题
拓扑磁振子绝缘体的自旋动力学模拟：从横向电流相关函数到磁振子霍尔效应族
DOI：
10.1103/physrevb.94.174444
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发表时间：
2016
影响因子：
3.7
通讯作者：
I. Mertig
中科院分区：
文献类型：
--
作者：
A. Mook;J. Henk;I. Mertig
我们从理论上证明了拓扑磁振子绝缘体（TMI）的原子自旋动力学模拟提供了磁振子介导的自旋和热的运输。的TMI，模拟戈薇铁磁体与Dzyaloshinskiii-Moriya相互作用，表现出非零的横向电流相关函数，从整个家庭的磁振子霍尔效应的电导率。纵向和横向电导率的研究依赖于温度和外部磁场。对新近发现的TMI--Cu（1，3-benzenedicarboxylate）的理论和实验结果进行了比较。
We demonstrate theoretically that atomistic spin dynamics simulations of topological magnon insulators (TMIs) provide access to the magnon-mediated transport of both spin and heat. The TMIs, modeled by kagome ferromagnets with Dzyaloshinskii-Moriya interaction, exhibit nonzero transverse-current correlation functions from which conductivities are derived for the entire family of magnon Hall effects. Both longitudinal and transverse conductivities are studied in dependence on temperature and on an external magnetic field. A comparison between theoretical and experimental results for Cu(1,3-benzenedicarboxylate), a recently discovered TMI, is drawn.