Spin-valley Silin modes in graphene with substrate-induced spin-orbit coupling
Mesoscale and Nanoscale Physics
2022-05-04 v1 Strongly Correlated Electrons
Abstract
In the presence of external magnetic field the Fermi-liquid state supports oscillatory spin modes known as Silin modes. We predict the existence of the generalized Silin modes in a multivalley system, monolayer graphene. A gauge- and Berry-gauge- invariant kinetic equation for a multivalley Fermi liquid is developed and applied to the case of graphene with extrinsic spin-orbit coupling (SOC). The interplay of SOC and Berry curvature allows for the excitation of generalized Silin modes in the spin and valley-staggered-spin channels via an AC electric field. The resonant contributions from these modes to the optical conductivity are calculated.
Keywords
Cite
@article{arxiv.2107.02819,
title = {Spin-valley Silin modes in graphene with substrate-induced spin-orbit coupling},
author = {Zachary M. Raines and Dmitrii L. Maslov and Leonid I. Glazman},
journal= {arXiv preprint arXiv:2107.02819},
year = {2022}
}
Comments
5 pages, 1 figure; 9 pages supplementary