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High spin polarization of optically-oriented trions in p-doped GaAs-AlGaAs quantum wells

Wagenhuber, Klaus, Shalygin, Vadim, Niedermeier, Ulrich, Gerl, Christian, Wegscheider, Werner, Korn, Tobias, Schulz, Robert, Schüller, Christian, Ivchenko, Eougenious and Ganichev, Sergey (2007) High spin polarization of optically-oriented trions in p-doped GaAs-AlGaAs quantum wells. AIP Conference Proceedings 893, pp. 439-440.

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Abstract

We performed cw-photoluminescence (PL) measurements on a 15 nm wide p-doped Al0.3Ga0.7As-GaAs-Al0.3Ga0.7As quantum well structure at low temperatures. By irradiating the sample with circularly polarized light and analyzing the degree of circular polarization of the PL signal, we found a significantly higher degree of spin polarization for charged excitons (trions) than for neutral excitons. ...

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Item type:Article
Date:10 April 2007
Institutions:Physics > Institute of Experimental and Applied Physics > Professor Ganichev > Group Sergey Ganichev
Identification Number:
ValueType
10.1063/1.2729954DOI
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:2133
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