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Institut f. Physik FG Nanostrukturierte Materialien
Martin-Luther-Universitat Halle-Wittenberg
Von-Danckelmann-Platz 3, D-06120 Halle, Germany
Tel.: +49 345 55 25321
Fax.: +49 345 55 27034
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B. Heinrich, G. Woltersdorf, R. Urban, O. Mosendz, G. Schmidt, P. Bach, L. Molenkamp, E. Rozenberg Magnetic properties of NiMnSb(001) films grown on InGaAs/InP(001) Journal Appl. Phys. 95 (2015-02-24 16:13:17), 7462-7464
NiMnSb half Heusler alloy films were prepared by molecular beam epitaxy(MBE) on InP(001). The dc and rf magnetic properties were investigated by ferromagnetic resonance (FMR). The effective uniaxial anisotropy fields increased with increasing film thickness and reached nonzero asymptotic values. FMR linewidths rapidly increased with the film thickness due to the presence of two magnon scattering. Bulklike uniaxial anisotropies and two magnon scattering were caused by a self-assembled network of lattice defects. Gilbert damping parameter and spectroscopic g factor were found to be 3.1×107 and 2.03, respectively, indicating a weak role of spin orbit interaction. http://scitation.aip.org/content/aip/journal/jap/95/11/10.1063/1.1687274 |
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