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Collective electronic excitation in a trapped ensemble of photogenerated dipolar excitons and free holes revealed by inelastic light scattering

Dietl, Sebastian, Wang, Sheng , Schuh, Dieter, Wegscheider, Werner, Kotthaus, Jörg P., Pinczuk, Aron, Holleitner, Alexander W. and Wurstbauer, Ursula (2017) Collective electronic excitation in a trapped ensemble of photogenerated dipolar excitons and free holes revealed by inelastic light scattering. Physical Review B 95 (8).

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Other URL: http://doi.org/10.1103/PhysRevB.95.085312


Abstract

Photogenerated excitonic ensembles confined in coupled GaAs quantum wells were probed by a complementary approach of emission spectroscopy and resonant inelastic light scattering. Lateral electrostatic trap geometries were used to create dense systems of spatially indirect excitons and excess holes with similar densities in the order of 10(11) cm(-2.) Inelastic light scattering spectra reveal a ...

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Item type:Article
Date:2017
Institutions:Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider
Identification Number:
ValueType
10.1103/PhysRevB.95.085312DOI
Keywords:BOSE-EINSTEIN CONDENSATION; MULTIPLE-QUANTUM-WELLS; PHOTOCURRENT SPECTROSCOPY; COULOMB DRAG; GAS; GAAS; HETEROSTRUCTURES; SYSTEMS; LIQUID; SUPERFLUIDITY;
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:38688
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