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Observation of orbital circular photogalvanic effect

Olbrich, Peter and Tarasenko, Sergey and Reitmaier, C. and Karch, J. and Plohmann, Daniel and Kvon, Z. D. and Ganichev, Sergey (2009) Observation of orbital circular photogalvanic effect. Physical Review B (PRB) 79, 121302-1-121302-4.

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Abstract

We report on the observation of the circular photogalvanic effect in Si-metal-oxide-semiconductor fieldeffect transistors with inversion channel excited by terahertz radiation. We demonstrate that in spite of the fact that the photocurrent is caused by transfer of the photon angular momentum to free carriers, it is not due to spin orientation but has a pure orbital origin. It results from the quantum interference of different pathways contributing to the free-carrier absorption of monochromatic radiation.

Item Type:Article
Institutions: Physics > Institute of Experimental and Applied Physics > Professor Ganichev > Group Sergey Ganichev
Projects:SFB 689: Spinphänomene in reduzierten Dimensionen
Identification Number:
ValueType
10.1103/PhysRevB.79.121302DOI
0808.1987arXiv ID
Related URLs:
URLURL Type
http://arxiv.org/abs/0808.1987Preprint
Classification:
NotationType
78.40.Fy, 72.40.w, 73.40.Qv, 78.20.ePACS
Subjects:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Partially
Owner:Christoph Drexler
Deposited On:30 Jun 2009 11:28
Last Modified:20 Jul 2011 23:35
Item ID:8352
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