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Comparison of exciton-biexciton with bound exciton-biexciton dynamics in GaN: Quantum beats and temperature dependence of the acoustic-phonon interaction

Abstract:

The polarization dependence of biexcitonic signals and quantum beats between A-excitons (X-A) and A-biexcitons (XAXA) in a high-quality GaN epilayer is measured by spectrally-resolved and time-integrated four-wave mixing. With cross-linear polarised light, mixed beats with two periods are observed: the first beating period corresponds to the energy splitting between X-A and XAXA, and agrees well with the calculated XAXA binding energy, while the second beating period corresponds to that betwe...

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Publication status:
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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Kuwata-Gonokami, M More by this author
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Volume:
228
Issue:
2
Pages:
475-479
Publication date:
2001-11-05
DOI:
EISSN:
1521-3951
ISSN:
0370-1972
URN:
uuid:60b249be-2aaa-4d97-acd8-52ac09078d58
Source identifiers:
8627
Local pid:
pubs:8627
Keywords:

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