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Proceedings Paper

Dynamics of collective spin excitations in CdMnTe quantum wells
Author(s): D. Scalbert; M. Vladimirova; S. Cronenberger; P. Barate; F. Perez
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Paper Abstract

We show that femtosecond time-resolved optical techniques are ideally suited to excite and probe collective spin organization and collective spin modes, in diluted magnetic semiconductors based quantum wells. The spin systems that we consider are low concentration CdMnTe quantum wells, which exhibit various spin phenomena under optical pulsed excitation, such as spontaneous magnetization patterning, soft mode of magnetization precession in p-doped quantum wells, and mixed electron-Mn precession in n-doped quantum wells. We examine also how the carrier-carrier Coulomb interactions affect these collective spin excitations.

Paper Details

Date Published: 18 August 2009
PDF: 15 pages
Proc. SPIE 7398, Spintronics II, 739803 (18 August 2009); doi: 10.1117/12.824371
Show Author Affiliations
D. Scalbert, Univ. Montpellier 2 (France)
M. Vladimirova, Univ. Montpellier 2 (France)
S. Cronenberger, Univ. Montpellier 2 (France)
P. Barate, Univ. Montpellier 2 (France)
F. Perez, Univ. Paris VI (France)

Published in SPIE Proceedings Vol. 7398:
Spintronics II
Manijeh Razeghi; Henri-Jean M. Drouhin; Jean-Eric Wegrowe, Editor(s)

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