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arXiv · 0711.1444

Spin Hall effect in Sr2RuO4 and transition metals (Nb,Ta)

T. Tanaka·H. Kontani·M. Naito·D. S. Hirashima·K. Yamada·J. Inoue
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Abstract

We study the intrinsic spin Hall conductivity (SHC) and the $d$-orbital Hall conductivity (OHC) in metallic $d$-electron systems based on the multiorbital tight-binding model. The obtained Hall conductivities are much larger than that in $p$-type semiconductors. The origin of these huge Hall effects is the "effective Aharonov-Bohm phase" induced by the signs of inter-orbital hopping integrals as well as atomic spin-orbit interaction. Huge SHC and OHC due to this mecahnism is ubiquitous in multiorbital transition metals.

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T. Tanaka, H. Kontani, M. Naito, D. S. Hirashima, K. Yamada, J. Inoue. 2007-11-09. Spin Hall effect in Sr2RuO4 and transition metals (Nb,Ta). https://doi.org/10.1016/j.jpcs.2008.06.096

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