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.date.accessioned2013-10-14T07:41:23Z
dc.date.available2013-10-14T07:41:23Z
dc.date.copyright2013en_US
dc.date.issued2013
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.identifier.urihttp://hdl.handle.net/10220/16486
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.language.isoenen_US
dc.relation.ispartofseriesNature physicsen_US
dc.subjectDRNTU::Engineering::Materials
dc.titleZeeman-type spin splitting controlled by an electric fielden_US
dc.typeJournal Article
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.identifier.doihttp://dx.doi.org/10.1038/nphys2691


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