Spin-resolved orbital magnetization in Rashba two-dimensional electron gas

Abstract

We calculate orbital spin-dependent magnetization in a two-dimensional electron gas with spin-orbit interaction of Rashba type. Such an orbital magnetization is admitted by the time-reversal symmetry of the system, and gives rise to spin currents when the system is not in thermal equilibrium. The theoretical approach is based on the linear response theory and the Matsubara Green's function formalism. To account for the spin-resolved orbital magnetization a spin-dependent vector potential has been introduced. The spin currents which appear in thermal nonequilibrium due to the spin-resolved orbital magnetization play an important role in the spin Nernst effect, and have to be included in order to correctly describe the low-temperature spin Nernst conductivity.

9 pages, 2 figures

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Cited by in corpus (12)

• Berry-phase effects in dipole density and Mott relation
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• Extended Creutz ladder with spin-orbit coupling: a one-dimensional analog of the Kane-Mele model
• Conserved spin current for the Mott relation
• Thermally-induced spin polarization in a magnetized two-dimensional electron gas with Rashba spin-orbit interaction
• Intrinsic Nernst effect of the magnon orbital moment in a honeycomb ferromagnet
• Magnon gravitomagnetoelectric effect in noncentrosymmetric antiferromagnetic insulators
• Impurity-induced orbital magnetization in a Rashba electron gas
• Microscopic theory of spin Nernst effect
• Spin accumulation in the spin Nernst effect
• Intrinsic spin Nernst effect in topological Dirac and magnetic Weyl semimetals
• Gauging away the Stoner model: Engineering unconventional metallic ferromagnetism with artificial gauge fields