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Transient grating studies of phase and spin relaxations of excitons in GaAs single quantum wells

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Title: Transient grating studies of phase and spin relaxations of excitons in GaAs single quantum wells
Authors: Tomoda, K. Browse this author
Adachi, S. Browse this author →KAKEN DB
Muto, S. Browse this author
Shimomura, S. Browse this author
Keywords: exciton spin relaxation
phase relaxation
exchange interaction
quantum well
Issue Date: Sep-2010
Publisher: Elsevier B.V.
Journal Title: Physica E: Low-dimensional Systems and Nanostructures
Volume: 42
Issue: 10
Start Page: 2714
End Page: 2717
Publisher DOI: 10.1016/j.physe.2009.12.009
Abstract: Exciton spin and phase relaxations at low temperatures in GaAs/AlGaAs single quantum wells were investigated by using transient grating technique. The technique allows us to obtain the exciton lifetime, spin relaxation, and phase relaxation in the same setup. In combination with a series of single quantum wells grown on the same substrate, the well width dependence of exciton spin relaxation was studied. The obtained spin relaxation results were analyzed with their phase relaxation times in a framework of MAS mechanism, and were in good agreement with the calculated results. Especially, the motional narrowing character of the exciton spin relaxation was well demonstrated.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 足立 智

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