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Article: Anomalous Magneto-Optical Response and Chiral Interface of Dipolar Excitons at Twisted Valleys

TitleAnomalous Magneto-Optical Response and Chiral Interface of Dipolar Excitons at Twisted Valleys
Authors
Zheng, HuiyuanZhai, DaweiYao, Wang
KeywordsChiral interface
Dipolar excitons
Magneto-optical effect
Strain
Twistronics
Issue Date2022
Citation
Nano Letters, 2022, v. 22, n. 13, p. 5466-5472 How to Cite?
DOI: http://dx.doi.org/10.1021/acs.nanolett.2c01508
AbstractAn anomalous magneto-optical spectrum is discovered for dipolar valley excitons in twisted double-layer transition metal dichalcogenides, where the in-plane magnetic field induces a sizable multiplet splitting of exciton states inside the light cone. Chiral dispersions of the split branches make possible an efficient optical injection of the unidirectional exciton current. We also find an analog effect with a modest heterostrain replacing the magnetic field for introducing large splitting and chiral dispersions in the light cone. Angular orientation of the photoinjected exciton flow can be controlled by strain, with left-right unidirectionality selected by circular polarization.
Persistent Identifierhttp://hdl.handle.net/10722/335399
ISSN
1530-6984
2023 Impact Factor: 9.6
2023 SCImago Journal Rankings: 3.411
ISI Accession Number ID
WOS:000820322000001

 

DC FieldValueLanguage
dc.contributor.authorZheng, Huiyuan-
dc.contributor.authorZhai, Dawei-
dc.contributor.authorYao, Wang-
dc.date.accessioned2023-11-17T08:25:34Z-
dc.date.available2023-11-17T08:25:34Z-
dc.date.issued2022-
dc.identifier.citationNano Letters, 2022, v. 22, n. 13, p. 5466-5472-
dc.identifier.issn1530-6984-
dc.identifier.urihttp://hdl.handle.net/10722/335399-
dc.description.abstractAn anomalous magneto-optical spectrum is discovered for dipolar valley excitons in twisted double-layer transition metal dichalcogenides, where the in-plane magnetic field induces a sizable multiplet splitting of exciton states inside the light cone. Chiral dispersions of the split branches make possible an efficient optical injection of the unidirectional exciton current. We also find an analog effect with a modest heterostrain replacing the magnetic field for introducing large splitting and chiral dispersions in the light cone. Angular orientation of the photoinjected exciton flow can be controlled by strain, with left-right unidirectionality selected by circular polarization.-
dc.languageeng-
dc.relation.ispartofNano Letters-
dc.subjectChiral interface-
dc.subjectDipolar excitons-
dc.subjectMagneto-optical effect-
dc.subjectStrain-
dc.subjectTwistronics-
dc.titleAnomalous Magneto-Optical Response and Chiral Interface of Dipolar Excitons at Twisted Valleys-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/acs.nanolett.2c01508-
dc.identifier.pmid35713477-
dc.identifier.scopuseid_2-s2.0-85133959708-
dc.identifier.volume22-
dc.identifier.issue13-
dc.identifier.spage5466-
dc.identifier.epage5472-
dc.identifier.eissn1530-6992-
dc.identifier.isiWOS:000820322000001-

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