File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Spin-layer locking effects in optical orientation of exciton spin in bilayer WSe2

TitleSpin-layer locking effects in optical orientation of exciton spin in bilayer WSe2
Authors
Issue Date2014
PublisherNature Publishing Group. The Journal's web site is located at http://npg.nature.com/npg/servlet/Form?_action=submit
Citation
Nature Physics, 2014, v. 10, p. 130-134 How to Cite?
AbstractCoupling degrees of freedom of distinct nature plays a critical role in numerous physical phenomena. The recent emergence of layered materials provides a laboratory for studying the interplay between internal quantum degrees of freedom of electrons. Here we report new coupling phenomena connecting real spin with layer pseudospins in bilayer WSe 2. In polarization-resolved photoluminescence measurements, we observe large spin orientation of neutral and charged excitons by both circularly and linearly polarized excitation, with the trion spectrum splitting into a doublet at large vertical electrical field. These observations can be explained as a locking of spin and layer pseudospin in a given valley, where the doublet implies an electrically induced spin splitting. The observed distinctive behaviour of the trion doublet under polarized excitation further provides spectroscopic evidence of interlayer and intralayer trion species, a promising step towards optical manipulation in van der Waals heterostructures through interlayer excitons. © 2014 Macmillan Publishers Limited.
Persistent Identifierhttp://hdl.handle.net/10722/197630
ISSN
2015 Impact Factor: 18.791
2015 SCImago Journal Rankings: 13.522
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorJones, AMen_US
dc.contributor.authorYu, Hen_US
dc.contributor.authorRoss, JSen_US
dc.contributor.authorKlement, Pen_US
dc.contributor.authorGhimire, NJen_US
dc.contributor.authorYan, JQen_US
dc.contributor.authorMandrus, DGen_US
dc.contributor.authorYao, Wen_US
dc.contributor.authorXu, XDen_US
dc.date.accessioned2014-05-29T08:32:21Z-
dc.date.available2014-05-29T08:32:21Z-
dc.date.issued2014en_US
dc.identifier.citationNature Physics, 2014, v. 10, p. 130-134en_US
dc.identifier.issn1745-2473en_US
dc.identifier.urihttp://hdl.handle.net/10722/197630-
dc.description.abstractCoupling degrees of freedom of distinct nature plays a critical role in numerous physical phenomena. The recent emergence of layered materials provides a laboratory for studying the interplay between internal quantum degrees of freedom of electrons. Here we report new coupling phenomena connecting real spin with layer pseudospins in bilayer WSe 2. In polarization-resolved photoluminescence measurements, we observe large spin orientation of neutral and charged excitons by both circularly and linearly polarized excitation, with the trion spectrum splitting into a doublet at large vertical electrical field. These observations can be explained as a locking of spin and layer pseudospin in a given valley, where the doublet implies an electrically induced spin splitting. The observed distinctive behaviour of the trion doublet under polarized excitation further provides spectroscopic evidence of interlayer and intralayer trion species, a promising step towards optical manipulation in van der Waals heterostructures through interlayer excitons. © 2014 Macmillan Publishers Limited.-
dc.languageengen_US
dc.publisherNature Publishing Group. The Journal's web site is located at http://npg.nature.com/npg/servlet/Form?_action=submiten_US
dc.relation.ispartofNature Physicsen_US
dc.titleSpin-layer locking effects in optical orientation of exciton spin in bilayer WSe2en_US
dc.typeArticleen_US
dc.identifier.emailYu, H: yuhongyi@hku.hken_US
dc.identifier.emailYao, W: wangyao@hku.hken_US
dc.identifier.authorityYao, W=rp00827en_US
dc.identifier.doi10.1038/NPHYS2848en_US
dc.identifier.scopuseid_2-s2.0-84895910311-
dc.identifier.hkuros228832en_US
dc.identifier.volume10en_US
dc.identifier.spage130en_US
dc.identifier.epage134en_US
dc.identifier.isiWOS:000332141800018-
dc.publisher.placeUnited Kingdomen_US

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats