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Demonstration Of Rashba Spin Splitting In GaN-based Heterostructures

Weber, Wolfgang, Ganichev, Sergey, Seidl, Simon, Belkov, Vassilij, Golub, Leonid, Prettl, Wilhelm, Kvon, Z., Cho, Hyun-Ick and Lee, Jung-Hee (2007) Demonstration Of Rashba Spin Splitting In GaN-based Heterostructures. AIP Conference Proceedings 893, pp. 1311-1312.

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The circular photogalvanic effect (CPGE), induced by infrared radiation, has been observed in (0001)-oriented GaN low dimensional structures. The photocurrent changes sign upon reversing the radiation helicity demonstrating the existence of spin splitting of the conduction band in k-space in this type of materials. The observation suggests the presence of a sizeable Rashba type of spin splitting, caused by the built-in asymmetry at the AlGaN/GaN interface.

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Item type:Article
Date:10 April 2007
Institutions:Physics > Institute of Experimental and Applied Physics > Professor Ganichev > Group Sergey Ganichev
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Dewey Decimal Classification:500 Science > 530 Physics
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:2134
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