104 citations · 200 across the 18 of their papers we have counts for
18 papers
Lorentz-Covariant Landau Levels of Tilted Dirac Fermions in Nonuniform Fields
Sushmita Saha, Alestin Mawrie
We develop an analytical theory of Landau quantization for tilted anisotropic Dirac fermions in an exponentially decaying magnetic field. Using anisotropy scaling and a Lorentz tra…
Topological Scaling of Nonlinear Injection current and the Quantized Circular Photogalvanic Effect (CPGE)in tilted multi Weyl semimetals(mWSMs)
Deepannita Das, Alestin Mawrie
We develop a microscopic theory of nonlinear magneto-optical injection currents in multi-Weyl semimetals subjected to a uniform magnetic field. Using the Landau-level spectrum of a…
A Quantum Framework for Negative Magnetoresistance in Multi-Weyl Semimetals
Arka Ghosh, Sushmita Saha, Alestin Mawrie
We develop a fully quantum-mechanical theory of negative magnetoresistance in multi-Weyl semimetals in the configuration, where the chiral anomaly is acti…
Enhanced Gilbert Damping via Cubic Spin-Orbit Coupling at 2DHG/Ferromagnetic Insulator Interface
Sushmita Saha, Alestin Mawrie
We investigate the enhancement of Gilbert damping at 2DHG/ferromagnetic insulator (FI) interfaces, where spin pumping from the FI layer injects spins into the 2DHG, and cubic Rashb…
Unveiling the Chiral States in Multi-Weyl Semimetals through Magneto-Optical Spectroscopy
Sushmita Saha, Deepannita Das, Alestin Mawrie
This study investigates the transport parameters in multi-Weyl semimetals, focusing on their magneto-optical properties and the role of chiral states. The tilting parameter is iden…
Floquet-Engineered Valley-Topotronics in Kekulé-Y Bond Textured Graphene Superlattice
Sushmita Saha, Alestin Mawrie
The exquisite distortion in a Kekulé-Y (Kek-Y) superlattice merges the two inequivalent Dirac cones (from the - and the - points) into the highest symmetric -point…
Magnetoresistive RAM with n-doped AlGaAs/GaAs writing/reading channels
Sushmita Saha, Deepak Sain, Alestin Mawrie
We show that the tunable gate voltage in n-doped AlGaAs/GaAs QW (quantum well) is a key in designing an efficient and ultrafast MRAM (magnetoresistive random access memory). The Ra…
Quantum anomalous Hall phase and effective in-plane Lande-g factor in an inverted InAs/GaSb quantum well
Sushmita Saha, Alestin Mawrie
The inverted band structure discovered in InAs/GaSb quantum well (QW) is found to host the topological quantum spin Hall (QSH) states. A QSH insulator hosts counterpropagating spin…
Magnetotransport properties of the Quantum Spin Hall and Quantum Hall states in an inverted HgTe/CdTe and InAs/GaSb quantum wells
Alestin Mawrie
The quantum spin Hall (QSH) states discovered in an inverted band of InAs/GaSb and HgTe/CdTe quantum wells categorize them among the very superior candidates for topological insula…
Evolution of Majorona zero-energy edge states in a symmetry protected 1D topological superconductor with dominant spin-orbit coupling
Alestin Mawrie
We consider a 1D topological superconductor (TSC) constructed by coupling a pair of Kitaev's Majorana chains with opposite spin configurations. Such a 1D lattice model is known to…
Quantum thermoelectrics based on 2-D Semi-Dirac materials
Alestin Mawrie, Bhaskaran Muralidharan
We show that a gap parameter can fully describe the merging of Dirac cones in semi-Dirac materials from - and -points into the common -point in the Brillouin zone.…
Direction dependent giant optical conductivity in 2D \textit{semi}-Dirac materials
Alestin Mawrie, Bhaskaran Muralidharan
We show that the gap parameter in \textit{semi}-Dirac material induces a large degree of sensitivity for inter-band optical conductivity with respect to the polarization direction.…
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…
Electrical and thermoelectric transport properties of two-dimensional fermionic systems with -cubic spin-orbit coupling
Alestin Mawrie, Sonu Verma, Tarun Kanti Ghosh
We investigate the effect of -cubic spin-orbit interaction on electrical and thermoelectric transport properties of two-dimensional fermionic systems. We obtain exact analytical…
Electrical and optical conductivities of hole gas in -doped bulk III-V semiconductors
Alestin Mawrie, Pushpajit Halder, Barun Ghosh +1
We study electrical and optical conductivities of hole gas in -doped bulk III-V semiconductors described by the Luttinger Hamiltonian. We provide exact analytical expressions of…
Optical conductivity of a 2DEG with anisotropic Rashba interaction at the interface of LaAlO/SrTiO
Alestin Mawrie, Tarun Kanti Ghosh
We study optical conductivity of a two-dimensional electron gas with anisotropic -cubic Rashba spin-orbit interaction formed at the LaAlO/SrTiO interface. The anisotropi…
Drude weight and optical conductivity of a two-dimensional heavy-hole gas with -cubic spin-orbit interactions
Alestin Mawrie, Tarun Kanti Ghosh
We present detailed theoretical study on zero-frequency Drude weight and optical conductivity of a two-dimensional heavy-hole gas(2DHG) with -cubic Rashba and Dresselhaus spin-o…
Magnetotransport properties of two-dimensional fermions with -cubic Rashba spin-orbit interaction
Alestin Mawrie, Tutul Biswas, Tarun Kanti Ghosh
The spin-orbit interaction in heavy hole gas formed at -doped semiconductor heterojunctions and electron gas at {\mbox SrTiO} surfaces is cubic in momentum. Here we report…