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)

–

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