Polariton Anomalous Hall Effect in Transition-Metal Dichalcogenides

被引：15

作者：

Gutierrez-Rubio, A. ^{[1
]}

Chirolli, L. ^{[1
]}

Martin-Moreno, L. ^{[2
]}

Garcia-Vidal, F. J. ^{[3
,4
,5
]}

Guinea, F. ^{[1
,5
,6
]}

机构：

[1] IMDEA Nanosci Inst, C Faraday 9, E-28049 Madrid, Spain

[2] Univ Zaragoza, Inst Ciencia Mat, Dept Fis Mat Condensada, E-50009 Zaragoza, Spain

[3] Univ Autonoma Madrid, Dept Fis Teor Mat Condensada, E-8049 Madrid, Spain

[4] Univ Autonoma Madrid, Condensed Matter Phys Ctr IFIMAC, E-8049 Madrid, Spain

[5] DIPC, E-20018 Donostia San Sebastian, Spain

[6] Univ Manchester, Sch Phys & Astron, Manchester M13 9PY, Lancs, England

来源：

PHYSICAL REVIEW LETTERS | 2018年 / 121卷 / 13期

关键词：

VALLEY POLARIZATION; EXCITON-POLARITONS; ROOM-TEMPERATURE; MONOLAYER MOS2; BERRY PHASE; LIGHT; CONDUCTANCE; GRAPHENE;

D O I：

10.1103/PhysRevLett.121.137402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We analyze the properties of strongly coupled excitons and photons in systems made of semiconducting two-dimensional transition-metal dichalcogenides embedded in optical cavities. Through a detailed microscopic analysis of the coupling, we unveil novel, highly tunable features of the spectrum that result in polariton splitting and a breaking of light-matter selection rules. The dynamics of the composite polaritons is influenced by the Berry phase arising both from their constituents and from the confinement-enhanced coupling. We find that light-matter coupling emerges as a mechanism that enhances the Berry phase of polaritons well beyond that of its elementary constituents, paving the way to achieve a polariton anomalous Hall effect.

引用

页数：6

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