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Ferromagnetic resonance study of MnAs/GaAs(1 1 1) thin films

โœ Scribed by A.H.V. Repetto Llamazares; J. Milano; L.B. Steren; V. Garcia; M. Marangolo; M. Eddrief; V.H. Etgens

Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
142 KB
Volume
398
Category
Article
ISSN
0921-4526

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โœฆ Synopsis

In this contribution we present a study of the magnetic properties of MnAs thin films grown over GaAs(1 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(1 0 0) thin films. We propose different microscopic mechanism for addressing the change in the anisotropy.

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