Magnetoelasticity of CoFe thin films

ORAL

Abstract

Ultra-low magnetic damping materials are critical for spintronic applications. Schoen et al. [1] recently discovered ultra-low magnetic damping in a metallic CoFe thin film. Magnetoelastic properties critically affect spintronic devices, however they are difficult to quantify in thin films. Here, we use SiN nanostring resonators loaded with CoFe thin films for measuring the magnetoelastic properties and find λ = (-27.2 ± 4.1 )× 10-6 for 10 nm thick Co25Fe75 films. This opens exciting perspectives for combining magnetoelastics with ultra-low damping materials.
[1] Schoen et al., Nature Physics 12, 839 (2016)

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Presenters

  • Daniel Schwienbacher

    • Walther Meissner Insitut, Bayerische Akademie der Wissenschaften

Authors

  • Daniel Schwienbacher

    • Walther Meissner Insitut, Bayerische Akademie der Wissenschaften

  • Matthias Pernpeintner

    • Walther Meissner Insitut, Bayerische Akademie der Wissenschaften

  • Mathias Weiler

    • Walther Meissner Insitut, Bayerische Akademie der Wissenschaften

  • Eric Edwards

    • National Institute for Standards and Technology
    • NIST - Boulder

  • Hans Nembach

    • JILA,University of Colorado
    • Quantum Electromagnetics Division, NIST
    • NIST - Boulder
    • NIST

  • Justin Shaw

    • National Institute for Standards and Technology
    • Quantum Electromagnetics Division, NIST
    • NIST - Boulder
    • NIST

  • Rudolf Gross

    • Walther-Meißner-Institut & TU München
    • Walther-Meissner-Institut, Bayerische Akademie der Wissenschaften
    • Walther-Meissner-Institut
    • Walther Meissner Insitut, Bayerische Akademie der Wissenschaften
    • Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften

  • Hans Huebl

    • Walther-Meissner-Institut, Bayerische Akademie der Wissenschaften
    • Walther Meissner Insitut, Bayerische Akademie der Wissenschaften
    • Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften