Many-body and spin-orbit effects on direct-indirect band gap transition of strained monolayer MoS${}_2$ and WS${}_2$

Luqing Wang, Alex Kutana, Boris I. Yakobson

Monolayer transition metal dichalcogenides are promising materials for photoelectronic devices. Among them, molybdenum disulphide (MoS${}_2$) and tungsten disulphide (WS${}_2$) are som…