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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 (XA) 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 XA and XAXA, and agrees well with the calculated XAXA binding energy; while the second beating period corresponds to that between...

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Condensed Matter Physics
Role:
Author
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Journal:
Physica Status Solidi (B) Basic Research
Volume:
228
Issue:
2
Pages:
475-479
Publication date:
2001-11-01
DOI:
ISSN:
0370-1972
Source identifiers:
134722
Language:
English
Pubs id:
pubs:134722
UUID:
uuid:811a0782-fbdb-4294-bccf-64f749ae1cae
Local pid:
pubs:134722
Deposit date:
2012-12-19

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