Magnetic edge states in transition metal dichalcogenide monolayers
A. V. Chaplik+*, L. I. Magarill+*, R. Z. Vitlina+
+Rzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia
*Novosibirsk State University, 630090 Novosibirsk, Russia
Abstract
We developed theory of the magnetic edge states in a half-plane of
transition metal dichalcogenide (TMDC) monolayer. The main qualitative
feature of such system that distinguishes it from an unbounded plane is
"tau-splitting", that is lifting of the valley degeneracy in an energy
spectrum. Interband optical transitions are characterized by the violation of
the selection rules established for the same transitions in an unbounded
monolayer.