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Ultrastrong light-matter coupling of the cyclotron transition in monolayer MoS2

Ultrastrong light-matter coupling of the cyclotron transition in monolayer MoS2
Ultrastrong light-matter coupling of the cyclotron transition in monolayer MoS2
The light-matter interaction in monolayer MoS2 system under a perpendicular magnetic field is theoretically investigated with the consideration of the influence of electron-hole asymmetry. For high filling factor of Landau Levels, we show that the system can enter the ultrastrong coupling regime. However, in contrast to graphene, MoS2 system shows no vacuum instability in our considered doping range. As for magnetopolariton dispersion of MoS2 in our considered magnetic field range, the magnetopolariton is valley degenerate. Moreover, although the lower branch of magnetopolariton has the spin degenerate, the upper branch shows no spin degenerate at high magnetic field. Our study can lead to tunable polariton-based devices and cavity-controlled magnetotransport in MoS2 system.
Li, B.
c23bc593-3c5b-4eeb-bec0-43aceb2a534c
Liu, T.
b3a4dd54-9e13-4ced-8058-a507075b341f
Wang, Q.
55f8a112-bd52-4444-a5ba-88f920bd9a75
Hewak, D.W.
87c80070-c101-4f7a-914f-4cc3131e3db0
Li, B.
c23bc593-3c5b-4eeb-bec0-43aceb2a534c
Liu, T.
b3a4dd54-9e13-4ced-8058-a507075b341f
Wang, Q.
55f8a112-bd52-4444-a5ba-88f920bd9a75
Hewak, D.W.
87c80070-c101-4f7a-914f-4cc3131e3db0

Li, B., Liu, T., Wang, Q. and Hewak, D.W. (2015) Ultrastrong light-matter coupling of the cyclotron transition in monolayer MoS2. ICMAT, Singapore, Singapore. 28 Jun - 03 Jul 2015.

Record type: Conference or Workshop Item (Poster)

Abstract

The light-matter interaction in monolayer MoS2 system under a perpendicular magnetic field is theoretically investigated with the consideration of the influence of electron-hole asymmetry. For high filling factor of Landau Levels, we show that the system can enter the ultrastrong coupling regime. However, in contrast to graphene, MoS2 system shows no vacuum instability in our considered doping range. As for magnetopolariton dispersion of MoS2 in our considered magnetic field range, the magnetopolariton is valley degenerate. Moreover, although the lower branch of magnetopolariton has the spin degenerate, the upper branch shows no spin degenerate at high magnetic field. Our study can lead to tunable polariton-based devices and cavity-controlled magnetotransport in MoS2 system.

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More information

Published date: June 2015
Venue - Dates: ICMAT, Singapore, Singapore, 2015-06-28 - 2015-07-03
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 379870
URI: https://eprints.soton.ac.uk/id/eprint/379870
PURE UUID: 9ae83094-509c-4494-ba4b-687df176d726
ORCID for D.W. Hewak: ORCID iD orcid.org/0000-0002-2093-5773

Catalogue record

Date deposited: 30 Jul 2015 15:24
Last modified: 20 Nov 2018 01:36

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