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Demonstration of Rashba spin splitting in GaN-based heterostructures

Weber, Wolfgang, Ganichev, Sergey, Kvon, Z, Bel'kov, V, Golub, L, Danilov, Sergey, Weiss, Dieter, Prettl, Wilhelm, Cho, H and Lee, J (2005) Demonstration of Rashba spin splitting in GaN-based heterostructures. Applied Physics Letters 87, p. 262106.

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The circular photogalvanic effect, induced by infrared radiation, has been observed in (0001)-oriented n-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
Institutions:Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss
Dewey Decimal Classification:500 Science > 530 Physics
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:7923
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