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VOLUME 84 | ISSUE 10 | PAGE 666
Spin photocurrents and circular photon drag effect in (110)-grown quantum well structures
V. A. Shalygin, H. Diehl+, Ch. Hoffmann+, S. N. Danilov+, T. Herrle+, S. A. Tarasenko*, D. Schuh+, Ch. Gerl+, W. Wegscheider+, W. Prettl+, S. D. Ganichev+
St. Petersburg State Polytechnic University, 195251 St. Petersburg, Russia
+Fakultät Physik, University of Regensburg, 93040 Regensburg, Germany
* A.F. Ioffe Physico-Technical Institute RAS, 194021 St. Petersburg, Russia


PACS: 72.25.Fe, 72.25.Rb, 73.50.Pz, 78.67.De
Abstract
We report on the study of spin photocurrents in (110)-grown quantum well structures. Investigated effects comprise the circular photogalvanic effect and so far not observed circular photon drag effect. The experimental data can be described by an analytical expression derived from a phenomenological theory. A microscopic model of the circular photon drag effect is developed demonstrating that the generated current has spin dependent origin.


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