Mott transition of excitons in coupled quantum wells.

Mott transition of excitons in coupled quantum wells. Research Abstract Details 

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Mott transition of excitons in coupled quantum wells. Abstract Text:

In this work we study the phase diagram of indirect excitons in coupled quantum wells and show that the system undergoes a phase transition to an unbound electron-hole plasma. This transition is manifested as an abrupt change in the photoluminescence linewidth and peak energy at some critical power density and temperature. By measuring the exciton diamagnetism, we show that the transition is associated with an abrupt increase in the exciton radius. We find that the transition is stimulated by the presence of direct excitons in one of the wells and show that they serve as a catalyst of the transition.

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Mott transition of excitons in coupled quantum wells. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Physical review letters

VOLUME: 100

Page Numbers: 256402

Journal Abbreviation: Phys. Rev. Lett.

ISSN: 0031-9007

DAY: 23

MONTH: 06

YEAR: 2008

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LANGUAGE: eng

NlmUniqueID: 401141

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AFFILIATION: Department of Condensed Matter Physics, The Weizmann Institute of Science, Rehovot, Israel.

Country: United States

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MEDLINETA: Phys Rev Lett

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