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Magneto-optical study of semiconductors for spintronics

Grant number: 09/16912-3
Support Opportunities:Scholarships abroad - Research
Effective date (Start): April 01, 2010
Effective date (End): May 31, 2010
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Acordo de Cooperação: DAAD
Principal Investigator:Andre Bohomoletz Henriques
Grantee:Andre Bohomoletz Henriques
Host Investigator: Dmitri Yakovlev
Institution abroad: Technische Universität Dortmund (TU Dortmund), Germany
Host Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil


Europium chalcogenides are important magnetic semiconductors that have a potential for applications in spintronic devices. Here we shall investigate EuTe and EuSe epitaxial layers, grown by molecular beam epitaxy, to gather new experimental evidence that will improve our understanding of the electronic processes in these systems. The experiments that will be performed include time-resolved Faraday rotation, time-resolved photoluminescence and second harmonic generation. The research aims at detecting and controlling the electronic and lattice magnetism by the use of light. InAs quantum dots embedded in a GaAs matrix, and containing imprisoned electrons, grown by MBE at the University of Sao Paulo, shall also be investigated by time-resolved pump-probe Faraday rotation, to characterize their spintronic properties. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SCHWAN, A.; MEINERS, B-M.; HENRIQUES, A. B.; MAIA, A. D. B.; QUIVY, A. A.; SPATZEK, S.; VARWIG, S.; YAKOVLEV, D. R.; BAYER, M.. Dispersion of electron g-factor with optical transition energy in (In,Ga)As/GaAs self-assembled quantum dots. Applied Physics Letters, v. 98, n. 23, . (09/16912-3, 10/10452-8)

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