Bulklike behavior of magnetoelasticity in epitaxial Fe1-xGax thin films

Barturen, M.; Sander, Dirk; Milano, J.; Premper, Jörg; Helman, C.; Eddrief, M.; Kirschner, Jürgen; Marangolo, M.

doi:10.1103/PhysRevB.99.134432

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Bulklike behavior of magnetoelasticity in epitaxial Fe_1-xGa_x thin films

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Sander, Dirk
Nanophotonics, Integration, and Neural Technology, Max Planck Institute of Microstructure Physics, Max Planck Society;

Premper, Jörg
Max Planck Institute of Microstructure Physics, Max Planck Society;

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Kirschner, Jürgen
Max Planck Institute of Microstructure Physics, Max Planck Society;

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https://doi.org/10.1103/PhysRevB.99.134432
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Citation

Barturen, M., Sander, D., Milano, J., Premper, J., Helman, C., Eddrief, M., et al. (2019). Bulklike behavior of magnetoelasticity in epitaxial Fe_1-xGa_x thin films. Physical Review B, 99(13): 134432. doi:10.1103/PhysRevB.99.134432.

Cite as: https://hdl.handle.net/21.11116/0000-0008-2263-2

Abstract

BulkFe_1-xGa_x alloys present a strong sensitivity of the magnetostrictive properties with Ga content with maximum magnetostriction near x=0.19. Here, we present magnetoelastic coefficients measured by the cantilever method on Fe_1-xGa_x thin films grown by molecular beam epitaxy on GaAs(001). We find that Ga-dependent magnetoelastic coefficients in nanometer thin films are comparable in magnitude to the respective bulk values. Moreover, we compare thin films with a tetragonal structure due to a slightly preferential alignment of Ga pairs along the growth direction with and a cubic structure. It turns out that magnetoelastic coefficients are unaffected by a preferential alignment of Ga pairs along the growth direction.