Giant valley splitting in monolayer WS2 by magnetic proximity effect

Valley degree of freedom promises the additional control of electrons in 2D materials but is limited by small valley splitting. Here the authors show heavily enhanced valley splitting in monolayer WS2 on EuS substrate due to competing ferromagnetic and antiferromagnetic exchange interactions for Eu-...

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Bibliographic Details
Main Authors: Tenzin Norden, Chuan Zhao, Peiyao Zhang, Renat Sabirianov, Athos Petrou, Hao Zeng
Format: Article
Language:English
Published: Nature Publishing Group 2019-09-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-019-11966-4