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.
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.
