Coulomb interaction effects in spin-polarized transport

Abstract

We study the effect of the electron-electron interaction on the transport of spin polarized currents in metals and doped semiconductors in the diffusive regime. In addition to well-known screening effects, we identify two additional effects, which depend on many-body correlations and exchange and reduce the spin diffusion constant. The first is the "spin Coulomb drag" - an intrinsic friction mechanism which operates whenever the average velocities of up-spin and down-spin electrons differ. The second arises from the decrease in the longitudinal spin stiffness of an interacting electron gas relative to a noninteracting one. Both effects are studied in detail for both degenerate and non-degenerate carriers in metals and semiconductors, and various limiting cases are worked out analytically. The behavior of the spin diffusion constant at and below a ferromagnetic transition temperature is also discussed.

9 figures

Cited by in corpus (30)

• Spin dynamics in semiconductors
• Universal Spin Transport in a Strongly Interacting Fermi Gas
• Spin Coulomb drag in the two-dimensional electron liquid
• Spin-Hall effect: Back to the Beginning on a Higher Level
• Kinetic theory of spin transport in n-typed semiconductor quantum wells
• Coulomb drag between ballistic one-dimensional electron systems
• Ambipolar spin diffusion and D'yakonov-Perel' spin relaxation in GaAs quantum wells
• Coulomb corrections to the extrinsic spin-Hall effect of a two-dimensional electron gas
• Spin-Hall effect and spin-Coulomb drag in doped semiconductors
• Nonlocal topological valley transport at large valley Hall angles
• Theory of a chiral Fermi liquid: general formalism
• Spin and charge transport in material with spin-dependent conductivity
• Spin relaxation in $n$-type GaAs quantum wells with transient spin grating
• Observing the spin-Coulomb drag in spin-valve devices
• Universal scaling of spin mixing dynamics in a strongly interacting one-dimensional Fermi gas
• Diffusion and transport of spin pulses in an $n$-type semiconductor quantum well
• The intrinsic charge and spin conductivities of doped graphene in the Fermi-Liquid regime
• Spin injection and electric field effect in degenerate semiconductors
• Valley and spin accumulation in ballistic and hydrodynamic channels
• Spin blockade at semiconductor/ferromagnet junctions
• Interacting drift-diffusion theory for photoexcited electron-hole gratings in semiconductor quantum wells
• Chirality and intrinsic dissipation of spin modes in two-dimensional electron liquids
• Spin current generation from Coulomb-Rashba interaction in semiconductor bilayers
• Ambipolar spin-spin coupling in p${}^{+}$-GaAs
• Spin-polarized electron transport in ferromagnet/semiconductor heterostructures: Unification of ballistic and diffusive transport
• Control of Spin Diffusion and Suppression of the Hanle Effect by the Coexistence of Spin and Valley Hall Effects
• Short-time Spin Dynamics in Strongly Correlated Few-fermion Systems
• Spin and Valley Hall effects induced by asymmetric interparticle scattering
• Measurement of spin diffusion in semi-insulating GaAs
• Low-temperature spin Coulomb drag in a two-dimensional electron gas