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Barturen, M., Sander, D., Milano, J., Premper, J., Helman, C., Eddrief, M., Kirschner, J., Marangolo, M.

Bulklike behavior of magnetoelasticity in epitaxial Fe1−xGax thin films
Physical Review B 99, (13),pp 134432/1-6 (2019)
Bulk Fe1−xGax 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 Fe1−xGax 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.