{ "id": "cond-mat/0701274", "version": "v1", "published": "2007-01-12T13:08:28.000Z", "updated": "2007-01-12T13:08:28.000Z", "title": "Orbital mechanism of the circular photogalvanic effect in quantum wells", "authors": [ "S. A. Tarasenko" ], "comment": "5 pages, 2 figures, to be published in JETP Letters", "journal": "Pis'ma v ZhETF 85, 216 (2007) [JETP Lett. 85, 182 (2007)]", "doi": "10.1134/S0021364007030113", "categories": [ "cond-mat.mes-hall", "cond-mat.mtrl-sci" ], "abstract": "It is shown that the free-carrier (Drude) absorption of circularly polarized radiation in quantum well structures leads to an electric current flow. The photocurrent reverses its direction upon switching the light helicity. A pure orbital mechanism of such a circular photogalvanic effect is proposed that is based on interference of different pathways contributing to the light absorption. Calculation shows that the magnitude of the helicity dependent photocurrent in $n$-doped quantum well structures corresponds to recent experimental observations.", "revisions": [ { "version": "v1", "updated": "2007-01-12T13:08:28.000Z" } ], "analyses": { "keywords": [ "circular photogalvanic effect", "quantum wells", "electric current flow", "pure orbital mechanism", "helicity dependent photocurrent" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable" } } }