Magnon transport in noncollinear spin textures: Anisotropies and topological magnon Hall effects
Magnon transport in noncollinear spin textures: Anisotropies and topological magnon Hall effects
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DOI：
10.1103/physrevb.95.020401
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发表时间：
2017-01-03
影响因子：
3.7
通讯作者：
Mertig, Ingrid
中科院分区：
文献类型：
--
作者：
Mook, Alexander;Goebel, Boerge;Mertig, Ingrid
我们分析签名的非共线自旋纹理的磁振子运输的自旋和热的原子自旋动力学。自旋纹理的影响证明了一个自旋螺旋和skyrmion晶格上的挫折反铁磁体。自旋螺旋显示在纵向运输的各向异性，而skyrmion晶格表现出横向运输，这是解释的拓扑结构，并建立skyrmion引起的版本的磁振子霍尔效应。电导率敏感地依赖于螺旋节距和skyrmion的大小，我们预测磁振子霍尔角高达60%。
We analyze signatures of noncollinear spin textures in the magnon transport of both spin and heat by means of atomistic spin dynamics. The influence of the spin texture is demonstrated for a spin spiral and for a skyrmion lattice on a frustrated antiferromagnet. Spin spirals show an anisotropy in the longitudinal transport, whereas skyrmion lattices exhibit transverse transport, which is interpreted in terms of topology and establishes skyrmion-induced versions of magnon Hall effects. The conductivities depend sensitively on the spiral pitch and on the skyrmion size; we predict magnon Hall angles as large as 60%.