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Proceedings Paper

Picosecond time scale spin-polarized electron kinetics in thin semiconductor layers
Author(s): K. Aulenbacher; J. Schuler; D. V. Harrach; E. Reichert; J. Roethgen; Arsen V. Subashiev; V. Tioukine; Yuri P. Yashin
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Paper Abstract

Time resolved photoemission of highly spin-polarized electrons from thin strained and unstrained GaAsxP1-x films of various thicknesses has been investigated. An upper limit for the response time of a photocathode has been found to be 1 ps for layer thicknesses less than 150 nm. We show that the electron depolarization during the electron extraction to the surface band bending region can be as low as 2% while the losses in the band bending region can contribute to 4% spin relaxation.

Paper Details

Date Published: 11 June 2003
PDF: 4 pages
Proc. SPIE 5023, 10th International Symposium on Nanostructures: Physics and Technology, (11 June 2003); doi: 10.1117/12.514461
Show Author Affiliations
K. Aulenbacher, Univ. Mainz (Germany)
J. Schuler, Univ. Mainz (Germany)
D. V. Harrach, Univ. Mainz (Germany)
E. Reichert, Univ. Mainz (Germany)
J. Roethgen, Univ. Mainz (Germany)
Arsen V. Subashiev, St. Petersburg State Univ. (Russia)
V. Tioukine, Univ. Mainz (Germany)
Yuri P. Yashin, St. Petersburg State Univ. (Russia)

Published in SPIE Proceedings Vol. 5023:
10th International Symposium on Nanostructures: Physics and Technology
Zhores I. Alferov; Leo Esaki, Editor(s)

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