Plasmons and screening in a monolayer of MoS₂

URN zum Zitieren dieses Dokuments:: urn:nbn:de:bvb:355-epub-322409
DOI zum Zitieren dieses Dokuments:: 10.5283/epub.32240

Scholz, Andreas ; Stauber, Tobias ; Schliemann, John

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Veröffentlichungsdatum dieses Volltextes: 22 Jul 2015 09:58

Alternative Links zum Volltext:DOI Verlag

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Zusammenfassung

We investigate the dynamical dielectric function of a monolayer of molybdenum disulfide within the random phase approximation. While in graphene damping of plasmons is caused by interband transitions, due to the large direct band gap in monolayer MoS2 collective charge excitations enter the intraband electron hole continuum similarly to the situation in two-dimensional electron and hole gases. ...