Magnetoelasticity of Co25Fe75 thin films

Daniel Schwienbacher; Matthias Pernpeintner; Lukas Liensberger; Eric R.J. Edwards; Hans T. Nembach; Justin M. Shaw; Mathias Weiler; Rudolf Gross; Hans Huebl

doi:10.1063/1.5116314

Magnetoelasticity of Co₂₅Fe₇₅ thin films

Daniel Schwienbacher, Matthias Pernpeintner, Lukas Liensberger, Eric R.J. Edwards, Hans T. Nembach, Justin M. Shaw, Mathias Weiler, Rudolf Gross, Hans Huebl

Chair of Technical Physics

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6 Scopus citations

Abstract

We investigate the magnetoelastic properties of C o 25 F e 75 and C o 10 F e 90 thin films by measuring the mechanical properties of a doubly clamped string resonator covered with multilayer stacks containing these films. For the magnetostrictive constants, we find λ C o 25 F e 75 = (- 20.68 ± 0.25) × 10 - 6 and λ C o 10 F e 90 = (- 9.80 ± 0.12) × 10 - 6 at room temperature, in contrast to the positive magnetostriction previously found in bulk CoFe crystals. C o 25 F e 75 thin films unite low damping and sizable magnetostriction and are thus a prime candidate for micromechanical magnonic applications, such as sensors and hybrid phonon-magnon systems.

Original language	English
Article number	103902
Journal	Journal of Applied Physics
Volume	126
Issue number	10
DOIs	https://doi.org/10.1063/1.5116314
State	Published - 14 Sep 2019

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title = "Magnetoelasticity of Co25Fe75 thin films",

abstract = "We investigate the magnetoelastic properties of C o 25 F e 75 and C o 10 F e 90 thin films by measuring the mechanical properties of a doubly clamped string resonator covered with multilayer stacks containing these films. For the magnetostrictive constants, we find λ C o 25 F e 75 = (- 20.68 ± 0.25) × 10 - 6 and λ C o 10 F e 90 = (- 9.80 ± 0.12) × 10 - 6 at room temperature, in contrast to the positive magnetostriction previously found in bulk CoFe crystals. C o 25 F e 75 thin films unite low damping and sizable magnetostriction and are thus a prime candidate for micromechanical magnonic applications, such as sensors and hybrid phonon-magnon systems.",

author = "Daniel Schwienbacher and Matthias Pernpeintner and Lukas Liensberger and Edwards, {Eric R.J.} and Nembach, {Hans T.} and Shaw, {Justin M.} and Mathias Weiler and Rudolf Gross and Hans Huebl",

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T1 - Magnetoelasticity of Co25Fe75 thin films

AU - Schwienbacher, Daniel

AU - Pernpeintner, Matthias

AU - Liensberger, Lukas

AU - Edwards, Eric R.J.

AU - Nembach, Hans T.

AU - Shaw, Justin M.

AU - Weiler, Mathias

AU - Gross, Rudolf

AU - Huebl, Hans

PY - 2019/9/14

Y1 - 2019/9/14

N2 - We investigate the magnetoelastic properties of C o 25 F e 75 and C o 10 F e 90 thin films by measuring the mechanical properties of a doubly clamped string resonator covered with multilayer stacks containing these films. For the magnetostrictive constants, we find λ C o 25 F e 75 = (- 20.68 ± 0.25) × 10 - 6 and λ C o 10 F e 90 = (- 9.80 ± 0.12) × 10 - 6 at room temperature, in contrast to the positive magnetostriction previously found in bulk CoFe crystals. C o 25 F e 75 thin films unite low damping and sizable magnetostriction and are thus a prime candidate for micromechanical magnonic applications, such as sensors and hybrid phonon-magnon systems.

AB - We investigate the magnetoelastic properties of C o 25 F e 75 and C o 10 F e 90 thin films by measuring the mechanical properties of a doubly clamped string resonator covered with multilayer stacks containing these films. For the magnetostrictive constants, we find λ C o 25 F e 75 = (- 20.68 ± 0.25) × 10 - 6 and λ C o 10 F e 90 = (- 9.80 ± 0.12) × 10 - 6 at room temperature, in contrast to the positive magnetostriction previously found in bulk CoFe crystals. C o 25 F e 75 thin films unite low damping and sizable magnetostriction and are thus a prime candidate for micromechanical magnonic applications, such as sensors and hybrid phonon-magnon systems.

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U2 - 10.1063/1.5116314

DO - 10.1063/1.5116314

M3 - Article

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VL - 126

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ER -

Magnetoelasticity of Co₂₅Fe₇₅ thin films

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