Different types of spin currents in the comprehensive materials database of nonmagnetic spin Hall effect  

作　　者：Yang Zhang Qiunan Xu Klaus Koepernik Roman Rezaev Oleg Janson Jakub Železný Tomáš Jungwirth Claudia Felser Jeroen van den Brink Yan Sun 

机构地区：[1]Max Planck Institute for Chemical Physics of Solids,01187 Dresden,Germany [2]Leibniz Institute for Solid State and Materials Research,01069 Dresden,Germany [3]Department of Physics,Massachusetts Institute of Technology,Cambridge,MA 02139,USA [4]Institute of Physics,Czech Academy of Sciences,Cukrovarnicka 10,16200 Praha 6,Czech Republic [5]School of Physics and Astronomy,University of Nottingham,NG72RD Nottingham,United Kingdom [6]Center for Nanoscale Systems,Faculty of Arts and Sciences,Harvard University,11 Oxford Street,LISE 308,Cambridge,MA 02138,USA [7]Institut fur Theoretische Physik and Wurzburg-Dresden Cluster of Excellence ct.qmat,Dresden University of Technology,01062 Dresden,Germany

出　　处：《npj Computational Materials》2021年第1期1522-1528,共7页计算材料学（英文）

基　　金：This work was financially supported by the ERC Advanced Grant no.291472‘Idea Heusler’,ERC Advanced Grant no.742068–TOPMAT;Deutsche Forschungsgemeinschaft DFG under SFB 1143;EU FET Open RIA Grant no.766566 grant(ASPIN);This work was performed in part at the Center for Nanoscale Systems(CNS),a member of the National Nanotechnology Coordinated Infrastructure Network(NNCI),which is supported by the National Science Foundation under NSF award no.1541959;CNS is part of Harvard University.Most of our calculations are carried on Cobra cluster of MPCDF,Max Planck Society.J.Ž.acknowledges funding from the Czech Science Foundation Grant no.19-18623Y;support from the Institute of Physics of the Czech Academy of Sciences and the Max Planck Society through the Max Planck Partner Group programme.

摘　　要：Spin Hall effect(SHE)has its special position in spintronics.To gain new insight into SHE and to identify materials with substantial spin Hall conductivity(SHC),we performed high-precision high-throughput ab initio calculations of the intrinsic SHC for over 20,000 nonmagnetic crystals.The calculations revealed a strong relationship between the magnitude of the SHC and the crystalline symmetry,where a large SHC is typically associated with mirror symmetry-protected nodal line band structures.This database includes 11 materials with an SHC comparable to or even larger than that of Pt.Materials with different types of spin currents were additionally identified.Furthermore,we found that different types of spin current can be obtained by rotating applied electrical fields.This improves our understanding and is expected to facilitate the design of new types of spin-orbitronic devices.

关 键 词：SYMMETRY MAGNETIC effect 

分 类 号：TB34[一般工业技术—材料科学与工程]