R. Z. Vitlina, L. I. Magarill, A. V. Chaplik, “Electronic spectrum and optical properties of quantum wires made from transition metal dichalcogenides”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2019, Volume 110, Issue 8,Pages <nobr>534

This article is cited in 3 papers

CONDENSED MATTER

Electronic spectrum and optical properties of quantum wires made from transition metal dichalcogenides

R. Z. Vitlina^a, L. I. Magarill^ab, A. V. Chaplik^ba

^a Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
^b Novosibirsk State University, Novosibirsk, 630090 Russia

Abstract: The energy spectrum and optical absorption in a quantum wire of monolayer transition metal dichalcogenides in the shape of a straight strip are investigated theoretically. It is established that edge-like states with energies within the band gap of an infinite sample are absent in strips whose width is smaller than the critical one. Depending on the mutual parity of the quantum-confinement subbands in the valence and conduction bands, optical transitions are characterized by significantly differing threshold behaviors of the absorption strength. The strongest absorption corresponds to transitions between subbands with the same indices.

Received: 27.08.2019
Revised: 29.08.2019
Accepted: 29.08.2019

DOI: 10.1134/S0370274X19200049