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

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.

4 pages, 3 figures, Proceedings of SNS conference in Sendai, 2007

References in corpus (6)

• Room Temperature Reversible Spin Hall Effect
• Study of Intrinsic Spin Hall Effect and Orbital Hall Effect in 4d- and 5d- Transition Metals
• Applications of a tight-binding total energy method for transition and noble metals: Elastic Constants, Vacancies, and Surfaces of Monatomic Metals
• Giant Intrinsic Spin and Orbital Hall Effects in Sr2MO4 (M=Ru,Rh,Mo)
• The role of spin-orbit coupling for the superconducting state in Sr_2RuO_4
• Intrinsic anomalous Hall effect in ferromagnetic metals studied by the multi d-orbital tight-binding model