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Journal Articles Physica Status Solidi Year : 2012

Structural and magnetic properties of Co2MnSi thin films

Abstract

Co2MnSi (CMS) films of different thicknesses (20, 50, and 100 nm) were grown by radio frequency (RF) sputtering on a-plane sapphire substrates. Our X-rays diffraction (XRD) study shows that, in all the samples, the cubic 〈110〉 CMS axis is normal to the substrate and that six well defined preferential in-plane orientations are present. Static and dynamic magnetic properties were investigated using vibrating sample magnetometry (VSM) and microstrip line ferromagnetic resonance (MS-FMR), respectively. From the resonance measurements versus the direction and the amplitude of an applied magnetic field, most of the magnetic parameters are derived, i.e.: the magnetization, the gyromagnetic factor, the exchange stiffness coefficient, and the magnetic anisotropy terms. The in-plane anisotropy results from the superposition of two terms showing a twofold and a fourfold symmetry, respectively. The observed behavior of the hysteresis loops is in agreement with this complex form of the in-plane anisotropy.
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Dates and versions

hal-01193055 , version 1 (04-09-2015)

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M Belmeguenai, F Zighem, D Faurie, H. Tuzcuoglu, S.-M. Cherif, et al.. Structural and magnetic properties of Co2MnSi thin films. Physica Status Solidi, 2012, 209, pp.1328-1333. ⟨10.1002/pssa.201228039⟩. ⟨hal-01193055⟩
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