Microscopic Analysis of Lattice Distortion Effects in Rashba Systems

Abstract

We theoretically study the effects of dynamical lattice distortion in a three-dimensional Rashba system based on a tight-binding model. Considering an $sp$-electron system on a tetragonal lattice with broken inversion symmetry, lattice distortions are incorporated through hopping-integral and crystal-axis modulations. The effective Hamiltonian for the $p_z$- or $s$-derived band is found to have Rashba modulation terms, which induce various types of spin currents, such as Rashba, quadrupolar, perpendicular, and helicity currents. The results are compared with those obtained by the method of local coordinate transformation.

arXiv comment5pages, 3figures

References in corpus (8)

• Enhanced Gilbert Damping in Thin Ferromagnetic Films
• Spin pumping and magnetization dynamics in metallic multilayers
• Mechanical generation of spin current by spin-rotation coupling
• Microscopic Theory of Rashba Interaction in Magnetic Metal
• Acoustic spin Hall effect in strong spin-orbit metals
• Generation of Spin Current from Lattice Distortion Dynamics: Spin-Orbit Routes
• Extrinsic spin Hall effect in inhomogeneous systems
• Helicity current generation by distorted Rashba coupling

Cited by in corpus (3)

• Nonlinear Piezomagnetic Effects in $g$-wave Altermagnets
• Nonrelativistic Functional Properties in Collinear Antiferromagnets Based on Multipole Representation Theory
• Analysis of Spin Current Generation by Elastic Waves in $f$-wave Altermagnets