Giant spin Nernst effect induced by resonant scattering at surfaces of metallic films
Giant spin Nernst effect induced by resonant scattering at surfaces of metallic films
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DOI：
10.1103/physrevb.93.180406
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发表时间：
2016-03
影响因子：
3.7
通讯作者：
N. H. Long;P. Mavropoulos;B. Zimmermann;S. Blugel;Y. Mokrousov
中科院分区：
文献类型：
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作者：
N. H. Long;P. Mavropoulos;B. Zimmermann;S. Blugel;Y. Mokrousov
介绍了在非磁性金属薄膜中实现巨自旋能思特效应的新概念。它是基于工程思想的一个不对称的能量依赖的纵向和横向电导率，以及一个明显的能量依赖自旋霍尔角在费米能级附近的共振杂质态在费米能级。我们采用了一个解析模型，并使用{\it abi -initio}计算结合波尔兹曼方法证明了Ag（111）薄膜中巨大自旋能司特效应的出现，该效应是由杂质歪斜散射引起的输运性质。
A new concept realizing giant spin Nernst effect in nonmagnetic metallic films is introduced. It is based on the idea of engineering an asymmetric energy dependence of the longitudinal and transverse electrical conductivities, as well as a pronounced energy dependence of the spin Hall angle in the vicinity of the Fermi level by the resonant impurity states at the Fermi level. We employ an analytical model and demonstrate the emergence of a giant spin Nernst effect in Ag(111) films using {\it ab-initio} calculations combined with the Boltzmann approach for transport properties arising from skew scattering off impurities.