Evidence of pressure-induced multiple electronic topological transitions in BiSe

S Chandra, J Sunil, P Dutta, K Pal, M Samanta… - Materials Today …, 2023 - Elsevier
BiSe, an exciting member of homologous family (Bi 2) m (Bi 2 Se 3) n [where, m= 1; n= 2],
has recently gained attention in thermoelectric research due to its intrinsically ultralow lattice …

Pressure-quenched superconductivity in Weyl semimetal NbP induced by electronic phase transitions under pressure

W Deng, J Zhen, Q Huang, Y Wang… - The Journal of …, 2022 - ACS Publications
The TaAs family (NbAs, TaAs, NbP, TaP) are kinds of Weyl semimetals with lots of novel
properties, thus attracting considerable attention in recent years. Here, we systematically …

Lattice-dependent spin Hall effect of light in a Weyl semimetal

S Liu, Y Shou, X Zhou, W Cheng, Z Luo - Optics express, 2020 - opg.optica.org
We systematically study the lattice-dependent spin Hall effect of light (SHEL) in a Weyl
semimetal (WSM) by considering left-handed polarization of the incident beam, and propose …

1144 Fe based superconductors: natural example of orbital selective self-doping and chemical pressure induced Lifshitz transition

A Ghosh, S Sen, H Ghosh - Computational Materials Science, 2021 - Elsevier
A systematic density functional theory based first principles electronic structure studies on
AeAFe 4 As 4 known as, 1144 iron based superconductors (IBSC) for various Ae= Ca, Sr, Eu …

Electronic structure studies of RbLn2Fe4As4O2 (Ln= Sm, Tb, Dy and Ho) compounds

A Pokhriyal, A Ghosh, H Ghosh - Materials Today Communications, 2023 - Elsevier
We report a comprehensive density functional theory based first principles studies on newly
discovered iron-based RbLn 2 Fe 4 As 4 O 2 (Ln= Sm, Tb, Dy, Ho) superconducting …

Giant Stokes shift for charged vacancies in monolayer SnS

AMZ Tan, MA Garcia, RG Hennig - Physical Review Materials, 2022 - APS
We perform first-principles density-functional theory calculations to determine the
equilibrium defect structures, formation energies, charge transition levels, and electronic …

Strong exciton regulation of Raman scattering in monolayer

Y Wang, BR Carvalho, VH Crespi - Physical Review B, 2018 - APS
The weakly screened electron-hole interactions in an atomically thin semiconductor not only
downshift its excitation spectrum from a quasiparticle one, but also redistribute excitation …

Electronic structure, magnetic order and Lifshitz transition in electron doped new structure 12442 type Fe-based superconductors

A Pokhriyal, A Ghosh, H Ghosh - Journal of Physics and Chemistry of …, 2023 - Elsevier
We investigate in detail the electronic structure of very recently discovered electron doped
12442-type iron based BaTh 2 Fe 4 As 4 (N 1− x O x) 2 compounds (x= 0.1–0.6), using …

High-pressure control of optical nonlinearity in the polar Weyl semimetal TaAs

C Li, X Li, T Deshpande, X Li, N Nair, JG Analytis… - Physical Review B, 2022 - APS
The transition metal monopnictide family of Weyl semimetals recently has been shown to
exhibit anomalously strong second-order optical nonlinearity, which is theoretically …

Pressure-Induced Electronic and Structural Transition in Nodal-Line Semimetal ZrSiSe

E Dong, R Liu, S Niu, X Luo, K Hu, H Tian… - Inorganic …, 2021 - ACS Publications
The nodal-line semimetals have recently gained attention as a promising material due to
their exotic electronic structure and properties. Here, we investigated the structural evolution …