The field-induced phase transition of an electron-hole system in weakly coupled double quantum wells
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1990
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Abstract
The sudden reduction of the photoluminescence linewidth observed at low temperature in coupled quantum wells is analysed in view of possible 2D phase transitions occurring at different density limits. The linewidth calculated within a BCS-like transition is found to be proportional to the gap below T c. This can be regarded as a 'fingerprint' for identifying the nature of the condensed phase.
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Journal of Physics: Condensed Matter
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Scientific & Academic Publishing Co.
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English