Bulklike behavior of magnetoelasticity in epitaxial Fe1−xGax thin films

M. Barturen, D. Sander, J. Milano, J. Premper, C. Helman, M. Eddrief, J. Kirschner, and M. Marangolo
Phys. Rev. B 99, 134432 – Published 23 April 2019
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  • INTRODUCTION
  • EXPERIMENT
  • RESULTS
  • CONCLUSIONS
  • ACKNOWLEDGMENTS
    • References

    Abstract

    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.

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    • Received 25 March 2019

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

    ©2019 American Physical Society

    Physics Subject Headings (PhySH)

    1. Research Areas
    MagnetismMagnetostriction
    1. Physical Systems
    Thin films
    Condensed Matter, Materials & Applied Physics

    Authors & Affiliations

    M. Barturen1,2,3,4,5, D. Sander6, J. Milano2,3,5, J. Premper6, C. Helman7, M. Eddrief4,5, J. Kirschner6, and M. Marangolo4,5

    • 1Instituto de Tecnología, Universidad Argentina de la Empresa, Lima 775, (C1073AAO) Ciudad Autónoma de Buenos Aires, Argentina
    • 2INN, CNEA-CONICET, Centro Atómico Bariloche, (R8402AGP) San Carlos de Bariloche, Argentina
    • 3Instituto Balseiro, Universidad Nacional de Cuyo, Centro Atómico Bariloche, (R8402AGP) San Carlos de Bariloche, Argentina
    • 4Sorbonne Université, CNRS, Institut des NanoSciences de Paris, UMR7588 F-75252, Paris, France
    • 5Laboratoire International Franco-Argentin en Nanosciences, Unité mixte de Recherche du CNRS, de l'université Pierre et Marie Curie, Campus Boucicaut - 140, rue de Lourmel - 75015, Paris
    • 6Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany
    • 7CNEA, Centro Atómico Bariloche, (R8402AGP) San Carlos de Bariloche, Argentina

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    Issue

    Vol. 99, Iss. 13 — 1 April 2019

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