Spin-orbitronic materials with record spin-charge conversion from high-throughput ab initio calculations

Abstract

The spin Hall effect (SHE) is an important spintronics phenomenon, which allows transforming a charge current into a spin current and vice versa without the use of magnetic materials or magnetic fields. To gain new insight into the physics of the SHE and to identify materials with a substantial spin Hall conductivities (SHC), we performed high-precision, high-throughput ab initio electronic structure calculations of the intrinsic SHC for over 20,000 non-magnetic crystals. The calculations reveal a strong and unexpected relation of the magnitude of the SHC with the crystalline symmetry, which we show exists because large SHC is typically associated with mirror symmetry protected nodal lines in the band structure. From the new developed database, we identify new promising materials. This includes eleven materials with a SHC comparable or even larger than that the up to now record Pt as well as materials with different types of spin currents, which could allow for new types of spin-obitronics devices.

References in corpus (14)

• Berry Phase Effects on Electronic Properties
• Universal Intrinsic Spin-Hall Effect
• Dissipationless Quantum Spin Current at Room Temperature
• Direct electronic measurement of the spin Hall effect
• Experimental observation of the spin-Hall effect in a two dimensional spin-orbit coupled semiconductor system
• Room Temperature Reversible Spin Hall Effect
• Control of spin-orbit torques through crystal symmetry in WTe2/ferromagnet bilayers
• Study of Intrinsic Spin Hall Effect and Orbital Hall Effect in 4d- and 5d- Transition Metals
• Comparative Measurements of Inverse Spin Hall and Magnetoresistance in YIG|Pt and YIG|Ta
• Temperature dependence of spin diffusion length and spin Hall angle in Au and Pt
• Symmetry-imposed shape of linear response tensors
• Ab initio calculation of intrinsic spin Hall effect in semiconductors
• Tunable Giant Spin Hall Conductivities in a Strong Spin-Orbit Semimetal: Bi${}_{1-x}$Sb${}_x$
• Spin-orbit induced longitudinal spin-polarized currents in non-magnetic solids

Cited by in corpus (2)

• Efficient Electrical Spin-Splitter Based on Non-Relativistic Collinear Antiferromagnetism
• Large multi-directional spin-to-charge conversion in low symmetry semimetal MoTe${}_2$ at room temperature