scholarly journals Tunability of multiple ultraflat bands and effect of spin-orbit coupling in twisted bilayer transition metal dichalcogenides

2020 ◽  
Vol 102 (24) ◽  
Author(s):  
Zhen Zhan ◽  
Yipei Zhang ◽  
Pengfei Lv ◽  
Hongxia Zhong ◽  
Guodong Yu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metal Dichalcogenides ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Metal Dichalcogenides

scholarly journals Tuning Ising superconductivity with layer and spin–orbit coupling in two-dimensional transition-metal dichalcogenides

2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Sergio C. de la Barrera ◽  
Michael R. Sinko ◽  
Devashish P. Gopalan ◽  
Nikhil Sivadas ◽  
Kyle L. Seyler ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metal Dichalcogenides ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Two Dimensional ◽  
Metal Dichalcogenides

scholarly journals Spin-orbit coupling induced valley Hall effects in transition-metal dichalcogenides

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Benjamin T. Zhou ◽  
Katsuhisa Taguchi ◽  
Yuki Kawaguchi ◽  
Yukio Tanaka ◽  
K. T. Law
Keyword(s):  
Transition Metal ◽  
Transition Metal Dichalcogenides ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Hall Effects ◽  
Metal Dichalcogenides

Strain-driven Phase Transition and Spin Polarization of Re-doped Transition-Metal Dichalcogenides

2021 ◽  
Author(s):  
Ruining Wang ◽  
Chen-Dong Jin ◽  
Hu Zhang ◽  
Ru-Qian Lian ◽  
Xingqiang Shi ◽  
...  
Keyword(s):  
Phase Transition ◽  
Magnetic Properties ◽  
Transition Metal ◽  
Spin Polarization ◽  
Transition Metal Dichalcogenides ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Two Dimensional ◽  
Energy Landscapes ◽  
Metal Dichalcogenides

Two-dimensional transition metal dichalcogenides (TMDCs) are promising in spintronics due to their spin-orbit coupling, but the intrinsic non-magnetic properties limit their further developments. Here, we focus on the energy landscapes...

Effects of Spin-Orbit Coupling on the Electronic and Excitonic Structures of Monolayer WS2

2019 ◽  
Vol 966 ◽  
pp. 48-53
Author(s):  
Budi Eka Dharma ◽  
Ahmad Syahroni ◽  
Muhammad Aziz Majidi
Keyword(s):  
Electronic Band Structure ◽  
Transition Metal Dichalcogenides ◽  
Grid Method ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Electronic Band ◽  
Independent Particle ◽  
Particle Level ◽  
Metal Dichalcogenides

Transition metal dichalcogenides (TMDs) display unique properties in their monolayer structures, namely a direct band-gap transition, which becomes a promising candidate for optoelectronics applications. Among them, WS2 exhibits strong spin-orbit interaction which splits the excitonic peaks as observed in the experimental data up to ~400 meV. Unlike the other TMDs, the first excitonic peak A is very sharp for WS2, while the secondary peak B is broader with smaller relative intensity. In this paper, we perform first-principles calculations on the electronic band structure and solve the Bethe-Salpeter equation for the complex dielectric function of monolayer WS2 to study the effects of spin-orbit coupling on its excitonic structures. To resolve the excitonic peaks, in particular the B peak, we implement the double-grid method. We discuss the effects of electron-hole interaction on the absorption spectrum by comparing it with that calculated at the independent-particle level.

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