Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Bhalla, Pankaj"'
Nodal line semimetals, a class of topological quantum materials, exhibit a variety of novel phenomena due to their properties, such as bands touching on a one-dimensional line or a ring in the Brillouin zone and drumhead-like surface states. In addit
Externí odkaz:
http://arxiv.org/abs/2409.17653
Autor:
Bhalla, Pankaj, Rostami, Habib
Publikováno v:
New Journal of Physics, 26 023042 (2024)
In this theoretical investigation, we analyze light-induced nonlinear spin Hall currents in a gated single-layer 1T$'$-WTe$_2$, flowing transversely to the incident laser polarization direction. Our study encompasses the exploration of the second and
Externí odkaz:
http://arxiv.org/abs/2303.06238
Publikováno v:
Phys. Rev. B 107, 165131 (2023)
The quantum kinetic framework provides a versatile method for investigating the dynamical optical and transport currents of crystalline solids. In this paper, starting from the density-matrix equations of motion, we present a general theoretical path
Externí odkaz:
http://arxiv.org/abs/2212.10330
We investigate the second-order nonlinear electronic thermal transport induced by temperature gradient. We develop the quantum kinetic theory framework to describe thermal transport in presence of a temperature gradient. Using this, we predict an int
Externí odkaz:
http://arxiv.org/abs/2211.01895
Autor:
Bhalla, Pankaj, Rostami, Habib
Single-layer of 1T$'$ phase of WTe$_2$ provides a rich platform for exotic physical properties such as nonlinear Hall effect and high-temperature quantum spin hall transport. Utilizing a continuum model and diagrammatic method, we calculate the secon
Externí odkaz:
http://arxiv.org/abs/2201.00734
Publikováno v:
Phys. Rev. B 105, 125407 (2022)
Using a diagrammatic scheme, we study the acoustoelectric effects in two-dimensional (2D) hexagonal Dirac materials due to the sound-induced pseudo-gauge field. We analyze both uniform and {\em spatially dispersive} currents in response to copropagat
Externí odkaz:
http://arxiv.org/abs/2112.10226
Publikováno v:
Phys. Rev. B 104, L081406 (2021)
Quantum spin-Hall edges are envisaged as next-generation transistors, yet they exhibit dissipationless transport only over short distances. Here we show that in a diffusive sample, where charge puddles with odd spin cause back-scattering, a magnetic
Externí odkaz:
http://arxiv.org/abs/2108.05378
Publikováno v:
Phys. Rev. Lett. 129, 227401 (2022)
Quantum geometry of the electron wave function plays a significant role in the linear and non-linear responses of crystalline materials. Here, we study quantum geometry induced second harmonic generation. We identify non-linear responses stemming fro
Externí odkaz:
http://arxiv.org/abs/2108.04082
Publikováno v:
Phys. Rev. Lett. 127, 206801 (2021)
Topological edge states exhibit dissipationless transport and electrically-driven topological phase transitions, making them ideal for next-generation transistors that are not constrained by Moore's law. Nevertheless, their dispersion has never been
Externí odkaz:
http://arxiv.org/abs/2107.03373
Autor:
Bhalla, Pankaj, Das, Nabyendu
Publikováno v:
J. Phys.: Condens. Matter 33 345401 (2021)
Motivated by recent experimental findings, we study the contribution of a quantum critical optical phonon branch to the thermal conductivity of a paraelectric system. We consider the proximity of the optical phonon branch to transverse acoustic phono
Externí odkaz:
http://arxiv.org/abs/2101.07039