Derivation of effective spin-orbit Hamiltonians and spin lifetimes, with application to SrTiO${}_3$ heterostructures

Abstract

A general approach is derived for constructing an effective spin-orbit Hamiltonian for nonmagnetic materials, which is useful for calculating spin-dependent properties near an arbitrary point in momentum space with pseudospin degeneracy. The formalism is verified through comparisons with other approaches for III-V semiconductors, and its general applicability is illustrated by deriving the spin-orbit interaction and predicting spin lifetimes for strained SrTiO${}_3$ and a two-dimensional electron gas in SrTiO${}_3$ (such as at the LaAlO${}_3$/SrTiO${}_3$ interface). These results suggest robust spin coherence and spin transport properties in SrTiO${}_3$-based materials at room temperature.

Published 2 April 2014

References in corpus (1)

• Spin injection and detection in lanthanum- and niobium-doped SrTiO3 using the Hanle technique

Cited by in corpus (9)

• Strong evidence for d-electron spin transport at room temperature at a LaAlO3/SrTiO3 interface
• Temperature-dependent dielectric function of bulk SrTiO${}_3$: Urbach tail, band edges, and excitonic effects
• Strain-induced large spin splitting and persistent spin helix at LaAlO${}_3$/SrTiO${}_3$ interface
• Electric field control of spin lifetimes in Nb-SrTiO${}_3$ by spin-orbit fields
• Antiferromagnetic Skyrmions and Skyrmion Density Wave in Rashba Hund's Insulator
• Magnetic and transport signatures of Rashba spin-orbit coupling on the ferromagnetic Kondo lattice model in two dimensions
• Superconducting tunneling spectroscopy of spin-orbit coupling and orbital depairing in Nb:SrTiO${}_3$
• Strain Engineering of the Intrinsic Spin Hall Conductivity in a SrTiO${}_3$ Quantum Well
• Helical currents in metallic Rashba strips