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Suppression of superfluidity of exciton-polaritons by magnetic field

Suppression of superfluidity of exciton-polaritons by magnetic field
Suppression of superfluidity of exciton-polaritons by magnetic field
We show that the properties of exciton-polariton condensate in a semiconductor microcavity are strongly sensitive to the external magnetic field normal to the cavity plane. In particular, the superfluidity is suppressed at a critical magnetic field Bc proportional to the polariton concentration. For B<Bc the Zeeman splitting of polaritons is exactly compensated by polariton–polariton interactions in the elliptically polarized condensate. Above the critical point, the spin degeneracy is lifted and the superfluidity reappears again on the circularly polarized lower polariton branch.
0375-9601
227-230
Rubo, Y.G.
11da6e15-93bf-4529-857c-71ecb819d540
Kavokin, A.V.
70ffda66-cfab-4365-b2db-c15e4fa1116b
Shelykh, I.A.
7dad78b3-4681-410a-abf2-39f3bb16c41f
Rubo, Y.G.
11da6e15-93bf-4529-857c-71ecb819d540
Kavokin, A.V.
70ffda66-cfab-4365-b2db-c15e4fa1116b
Shelykh, I.A.
7dad78b3-4681-410a-abf2-39f3bb16c41f

Rubo, Y.G., Kavokin, A.V. and Shelykh, I.A. (2006) Suppression of superfluidity of exciton-polaritons by magnetic field. Physics Letters A, 358 (3), 227-230. (doi:10.1016/j.physleta.2006.05.015).

Record type: Article

Abstract

We show that the properties of exciton-polariton condensate in a semiconductor microcavity are strongly sensitive to the external magnetic field normal to the cavity plane. In particular, the superfluidity is suppressed at a critical magnetic field Bc proportional to the polariton concentration. For B<Bc the Zeeman splitting of polaritons is exactly compensated by polariton–polariton interactions in the elliptically polarized condensate. Above the critical point, the spin degeneracy is lifted and the superfluidity reappears again on the circularly polarized lower polariton branch.

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Published date: 2006

Identifiers

Local EPrints ID: 57576
URI: http://eprints.soton.ac.uk/id/eprint/57576
ISSN: 0375-9601
PURE UUID: 1274b883-a071-4710-a26d-93e2719fbec7

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Date deposited: 13 Aug 2008
Last modified: 09 Nov 2021 09:53

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Contributors

Author: Y.G. Rubo
Author: A.V. Kavokin
Author: I.A. Shelykh

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