On the Role of a Torsion-like Field in a Scenario for the Spin Hall Effect

Abstract

Starting from an action that describes a Dirac fermion, we propose and analyze a model based on a low-relativistic Pauli equation coupled to a torsion-like term to study Spin Hall Effect (SHE). We point out a very particular connection between the modified Pauli equation and the (SHE), where what we refer to torsion as field playing an important rôle in the spin-orbit coupling process. In this scenario, we present a proposal of a spin-type current, considering the tiny contributions of torsion in connection with geometrical properties of the material.

14 pages, no figures, Annalen der Physik (2016)

References in corpus (10)

• Dissipationless Quantum Spin Current at Room Temperature
• Spin current and polarization in impure 2D electron systems with spin-orbit coupling
• On A Proper Definition of Spin Current
• Magnetoresistance due to edge spin accumulation
• Spin Hall Effect
• Theory of spin Hall effect
• Intrinsic Spin Hall Effect in the presence of Extrinsic Spin-Orbit Scattering
• Spin accumulation in ballistic Rashba bar
• Geometric treatment of conduction electron scattering by crystal lattice strains and dislocations
• Spin Hall effect associated with SU(2) gauge field