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19 April 2024 |
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Experimental Separation of Rashba and Dresselhaus Spin-Splittings in Semiconductor Quantum Wells | | S.D. Ganichev
; V.V. Bel’kov
; L.E. Golub
; E.L. Ivchenko
; Petra Schneider
; S. Giglberger
; J. Eroms
; J. DeBoeck
; G. Borghs
; W. Wegscheider
; D. Weiss
; W. Prettl
; | | Date: |
20 Jun 2003 | | Subject: | cond-mat | | Affiliation: | 1,2), V.V. Bel’kov , L.E. Golub , E.L. Ivchenko , Petra Schneider , S. Giglberger , J. Eroms , J. DeBoeck , G. Borghs , W. Wegscheider , D. Weiss , W. Prettl ( Fakultaet fuer Physik, Universitaet Regensburg, Regensburg, Germany, A. F. Ioffe Ph | | Abstract: | The relative strengths of Rashba and Dresselhaus terms describing the spin-orbit coupling in semiconductor quantum well (QW) structures are extracted from photocurrent measurements on n-type InAs QWs containing a two-dimensional electron gas (2DEG). This novel technique makes use of the angular distribution of the spin-galvanic effect at certain directions of spin orientation in the plane of a QW. The ratio of the relevant Rashba and Dresselhaus coefficients can be deduced directly from experiment and does not relay on theoretically obtained quantities. Thus our experiments open a new way to determine the different contributions to spin-orbit coupling. | | Source: | arXiv, cond-mat/0306521 | | Services: | Forum | Review | PDF | Favorites | |
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