An efficient implementation of two-component relativistic density functional theory with torque-free auxiliary variables

A Petrone, DB Williams-Young, S Sun… - The European Physical …, 2018 - Springer
An integration and assembly strategy for efficient evaluation of the exchange correlation
term in relativistic density functional theory within two-component Kohn–Sham framework is …

Chiral spin mode on the surface of a topological insulator

HH Kung, S Maiti, X Wang, SW Cheong, DL Maslov… - Physical review …, 2017 - APS
Using polarization-resolved resonant Raman spectroscopy, we explore collective spin
excitations of the chiral surface states in a three dimensional topological insulator, Bi 2 Se 3 …

Zero-field spin resonance in graphene with proximity-induced spin-orbit coupling

A Kumar, S Maiti, DL Maslov - Physical Review B, 2021 - APS
We investigate collective spin excitations in graphene with proximity-induced spin-orbit
coupling (SOC) of the Rashba and valley-Zeeman types, as it is the case, eg, for graphene …

Collective spin modes in fermi liquids with spin–orbit coupling

DL Maslov, A Kumar, S Maiti - Journal of Experimental and Theoretical …, 2022 - Springer
A combination of spin–orbit coupling and electron–electron interaction gives rise to a new
type of collective spin modes, which correspond to oscillations of magnetization even in the …

Phonon-induced collective modes in spin-orbit coupled polar metals

A Kumar, P Chandra, PA Volkov - Physical Review B, 2023 - APS
We study the interplay between collective electronic and lattice modes in polar metals in an
applied magnetic field aligned with the polar axis. Static spin-orbit coupling leads to the …

Chirality and intrinsic dissipation of spin modes in two-dimensional electron liquids

I d'Amico, F Perez, CA Ullrich - Journal of Physics D: Applied …, 2019 - iopscience.iop.org
We review recent theoretical and experimental developments concerning collective spin
excitations in two-dimensional electron liquid (2DEL) systems, with particular emphasis on …

Determination of the Rashba and Dresselhaus Spin–Orbit Interaction Parameters and g‐Factor from the Critical Points of the Spectrum in a 2D Electron Gas in an In …

YY Tkach - physica status solidi (b), 2021 - Wiley Online Library
A 2D electron gas with spin–orbit interaction (SOI) is known to form an anisotropic system
with van Hove singularities controllable by a parallel magnetic field. The conductivity tensors …

Spin-orbit interaction enabled electronic Raman scattering from charge collective modes

S Sarkar, A Lee, G Blumberg, S Maiti - Physical Review B, 2024 - APS
Electronic Raman scattering couples to the charge excitations in the system, including the
plasmons. However, the plasmon response has a spectral weight of∼ q 2, where q, the …

Spin precession and spin waves in a chiral electron gas: Beyond Larmor's theorem

S Karimi, F Baboux, F Perez, CA Ullrich, G Karczewski… - Physical Review B, 2017 - APS
Larmor's theorem holds for magnetic systems that are invariant under spin rotation. In the
presence of spin-orbit coupling this invariance is lost and Larmor's theorem is broken: for …

Effective lattice model for the collective modes in a Fermi liquid with spin-orbit coupling

A Kumar, DL Maslov - Physical Review B, 2017 - APS
A Fermi liquid (FL) with spin-orbit coupling (SOC) supports a special type of collective
modes—chiral spin waves—which are oscillations of magnetization that occur even in the …