Valley degeneracy breaking by magnetic field in monolayer MoSe2

Kurzanzeige
dc.contributor.authorMacNeill, David
dc.contributor.authorHeikes, Colin
dc.contributor.authorMak, Kin Fai
dc.contributor.authorZachary, Anderson
dc.contributor.authorKormányos, Andor
dc.contributor.authorZolyomi, Viktor
dc.contributor.authorPark, Jiwoong
dc.contributor.authorRalph, Daniel C.
dc.date.accessioned2015-02-18T10:25:42Z
dc.date.available2015-02-18T10:25:42Z
dc.date.issued2014eng
dc.description.abstractUsing polarization-resolved photoluminescence spectroscopy, we investigate valley degeneracy breaking by out-of-plane magnetic field in back-gated monolayer MoSe2 devices. We observe a linear splitting of −0.22meV/T between luminescence peak energies in σ+ and σ− emission for both neutral and charged excitons. The optical selection rules of monolayer MoSe2 couple photon handedness to the exciton valley degree of freedom, so this splitting demonstrates valley degeneracy breaking. In addition, we find that the luminescence handedness can be controlled with magnetic field, to a degree that depends on the back-gate voltage. An applied magnetic field therefore provides effective strategies for control over the valley degree of freedom.eng
dc.description.versionpublished
dc.identifier.arxiv1407.0686eng
dc.identifier.urihttp://kops.uni-konstanz.de/handle/123456789/29851
dc.language.isoengeng
dc.subject.ddc530eng
dc.titleValley degeneracy breaking by magnetic field in monolayer MoSe<sub>2</sub>eng
dc.typePREPRINTeng
dspace.entity.typePublication
kops.citation.bibtex
@unpublished{MacNeill2014Valle-29851,
  year={2014},
  title={Valley degeneracy breaking by magnetic field in monolayer MoSe<sub>2</sub>},
  author={MacNeill, David and Heikes, Colin and Mak, Kin Fai and Zachary, Anderson and Kormányos, Andor and Zolyomi, Viktor and Park, Jiwoong and Ralph, Daniel C.}
}
kops.citation.iso690MACNEILL, David, Colin HEIKES, Kin Fai MAK, Anderson ZACHARY, Andor KORMÁNYOS, Viktor ZOLYOMI, Jiwoong PARK, Daniel C. RALPH, 2014. Valley degeneracy breaking by magnetic field in monolayer MoSe2deu
kops.citation.iso690MACNEILL, David, Colin HEIKES, Kin Fai MAK, Anderson ZACHARY, Andor KORMÁNYOS, Viktor ZOLYOMI, Jiwoong PARK, Daniel C. RALPH, 2014. Valley degeneracy breaking by magnetic field in monolayer MoSe2eng
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temp.internal.duplicates<p>Keine Dubletten gefunden. Letzte Überprüfung: 25.11.2014 11:05:41</p>deu

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