Ferromagnetic resonance study of MnAs/GaAs(111) thin films
- Repetto Llamazares, A. H. V.
- Milano, J.
- Steren, L. B.
- Garcia, V.
- Marangolo, M.
- Eddrief, M.
- Etgens, V. H.
Publication date
September 2007
DOI Publisher
Elsevier BV ISSN
0921-4526 Citation count (estimate)
2Abstract
At the Frontiers of Condensed Matter III Workshop, Buenos Aires, ARGENTINA, DEC 11-15, 2006International audienceIn this contribution we present a study of the magnetic properties of MnAs thin films grown over GaAs(I 1 1) substrates, performed by ferromagnetic resonance experiments. We have calculated the magneto-crystalline anisotropy of the system analyzing the angular dependence of the resonance field with the applied field direction. The anisotropy measured for these films is much smaller than the calculated for MnAs bulk samples and MnAs/GaAs(I 0 0) thin films. We propose different microscopic mechanism for addressing the change in the anisotropy. (C) 2007 Elsevier B.V. All rights reserved
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