| Download ( PDF | 99kB) |
Spin relaxation times of 2D holes from spin sensitive bleaching of inter-subband absorption
Schneider, Petra, Kainz, Josef
, Ganichev, Sergey, Belkov, Vassilij, Danilov, Sergey, Glazov, M., Golub, L., Rössler, Ulrich, Wegscheider, Werner, Weiss, Dieter
, Schuh, Dieter and Prettl, Wilhelm
(2004)
Spin relaxation times of 2D holes from spin sensitive bleaching of inter-subband absorption.
Journal of Applied Physics 96 (1), pp. 420-424.
Date of publication of this fulltext: 05 Aug 2009 13:37
Article
DOI to cite this document: 10.5283/epub.2156
Abstract
We present spin relaxation times of two-dimensional holes obtained by spin sensitive bleaching of the absorption of infrared radiation in p-type GaAs/AlGaAs quantum wells (QWs). It is shown that the saturation of intersubband absorption of circularly polarized radiation is mainly controlled by the spin relaxation time of the holes. The saturation behavior has been determined for different QW ...
We present spin relaxation times of two-dimensional holes obtained by spin sensitive bleaching of the absorption of infrared radiation in p-type GaAs/AlGaAs quantum wells (QWs). It is shown that the saturation of intersubband absorption of circularly polarized radiation is mainly controlled by the spin relaxation time of the holes. The saturation behavior has been determined for different QW widths and in a wide range of temperatures with the result that the saturation intensity substantially decreases with narrowing of the QWs. Spin relaxation times are derived from the measured saturation intensities by making use of calculated (linear) absorption coefficients for direct intersubband transitions. It is shown that spin relaxation is due to the D'yakonov-Perel' mechanism governed by hole-hole scattering. The problem of selection rules is addressed. (C) 2004 American Institute of Physics.
Alternative links to fulltext
Involved Institutions
Details
| Item type | Article | ||||
| Journal or Publication Title | Journal of Applied Physics | ||||
| Publisher: | AMER INST PHYSICS | ||||
|---|---|---|---|---|---|
| Place of Publication: | MELVILLE | ||||
| Volume: | 96 | ||||
| Number of Issue or Book Chapter: | 1 | ||||
| Page Range: | pp. 420-424 | ||||
| Date | July 2004 | ||||
| Institutions | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss | ||||
| Identification Number |
| ||||
| Keywords | SEMICONDUCTOR QUANTUM-WELLS; ELECTRON; ORIENTATION; DYNAMICS; SUBBAND; STATES; | ||||
| Dewey Decimal Classification | 500 Science > 530 Physics | ||||
| Status | Published | ||||
| Refereed | Yes, this version has been refereed | ||||
| Created at the University of Regensburg | Yes | ||||
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-21564 | ||||
| Item ID | 2156 |
Download Statistics
Download Statistics