104 citations · 115 across the 2 of their papers we have counts for
6 papers
Dynamical polarization and plasmons in noncentrosymmetric metals
Sonu Verma, Arijit Kundu, Tarun Kanti Ghosh
We study the dynamical polarization function and plasmon modes for spin-orbit coupled noncentrosymmetric metals (NCMs). These systems have different Fermi surface topology for Ferm…
RKKY coupling in Weyl semimetal thin films
Sonu Verma, Debasmita Giri, H. A. Fertig +1
We consider the effective coupling between impurity spins on surfaces of a thin-film Weyl semimetal within Ruderman-Kittel-Kasuya-Yoshida (RKKY) theory. If the spins are on the sam…
Thermoelectric and optical probes for a Fermi surface topology change in noncentrosymmetric metals
Sonu Verma, Tutul Biswas, Tarun Kanti Ghosh
Noncentrosymmetric metals such as Li(PdPt)B have different Fermi surface topology below and above the band touching point where spin-degeneracy is not lifted by…
RKKY interaction in Mn-doped 4 4 Luttinger systems
Sonu Verma, Arijit Kundu, Tarun Kanti Ghosh
We consider Mn-doped bulk zinc-blende semiconductors described by the 4 4 Luttinger Hamiltonian. In these semiconductors, Mn atom acts as an acceptor providing the system…
Non-local control of spin-spin correlation in finite geometry helical edge
Sonu Verma, Arijit Kundu
An infinite edge of a quantum Hall system prohibits indirect exchange coupling between two spins whereas a quantum spin-Hall edge prohibits out-of-plane coupling. In this study we…
Effect of electron-hole asymmetry on optical conductivity in 8-Pmmn borophene
Sonu Verma, Alestin Mawrie, Tarun Kanti Ghosh
We present a detail theoretical study of the Drude weight and optical conductivity of 8- borophene having tilted anisotropic Dirac cones. We provide exact analytical expressi…