dc.contributor.authorYuan, Hongtao
dc.contributor.authorMohammad Saeed Bahramy
dc.contributor.authorMorimoto, Kazuhiro
dc.contributor.authorWu, Sanfeng
dc.contributor.authorNomura, Kentaro
dc.contributor.authorYang, Bohm-Jung
dc.contributor.authorShimotani, Hidekazu
dc.contributor.authorSuzuki, Ryuji
dc.contributor.authorToh, Minglin
dc.contributor.authorKloc, Christian
dc.contributor.authorXu, Xiaodong
dc.contributor.authorArita, Ryotaro
dc.contributor.authorNagaosa, Naoto
dc.contributor.authorIwasa, Yoshihiro
dc.identifier.citationYuan, H., Mohammad, S. B., Morimoto, K., Wu, S., Nomura, K., Yang, B. J., et al. (2013). Zeeman-type spin splitting controlled by an electric field. Nature physics, 9, 563-569.en_US
dc.description.abstractTransition-metal dichalcogenides such as WSe2 and MoS2 have electronic band structures that are ideal for hosting many exotic spin–orbit phenomena. Here we investigate the possibility to generate and modulate a giant Zeeman-type spin polarization in WSe2 under an external electric field. By tuning the perpendicular electric field applied to the WSe2 channel with an electric-double-layer transistor, we observe a systematic crossover from weak localization to weak anti-localization in magnetotransport. Our optical reflection measurements also reveal an electrically tunable exciton splitting. Using first-principles calculations, we propose that these are probably due to the emergence of a merely out-of-plane and momentum-independent spin splitting at and in the vicinity of the vertices of the WSe2 Brillouin zone under electric field. The non-magnetic approach for creating such an intriguing spin splitting keeps the system time-reversally invariant, thereby suggesting a new method for manipulating the spin degrees of freedom of electrons.en_US
dc.relation.ispartofseriesNature physicsen_US
dc.titleZeeman-type spin splitting controlled by an electric fielden_US
dc.typeJournal Article
dc.contributor.schoolSchool of Materials Science and Engineeringen_US

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