A Route to Permanent Valley Polarization in Monolayer MoS2

Nirpendra Singh; Udo Schwingenschlögl

doi:10.1002/adma.201600970

A Route to Permanent Valley Polarization in Monolayer MoS₂

Adv Mater. 2017 Jan;29(1). doi: 10.1002/adma.201600970. Epub 2016 Oct 24.

Authors

Nirpendra Singh¹, Udo Schwingenschlögl¹

Affiliation

¹ Physical Science and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.

PMID: 27775876
DOI: 10.1002/adma.201600970

Abstract

Realization of permanent valley polarization in Cr-doped monolayer MoS₂ is found to be unfeasible because of extended moment formation. Introduction of an additional hole is suggested as a viable solution. V-doped monolayer MoS₂ is demonstrated to sustain permanent valley polarization and therefore can serve as a prototype material for valleytronics.

Keywords: extended magnetic moment; molybdenum disulfide; transition metal dichalcogenides; valley polarization; valleytronics.