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Metallic ferromagnetic films with magnetic damping under 1.4 × 10−3

Author

Listed:
  • Aidan J. Lee

    (The Ohio State University)

  • Jack T. Brangham

    (The Ohio State University)

  • Yang Cheng

    (The Ohio State University)

  • Shane P. White

    (The Ohio State University)

  • William T. Ruane

    (The Ohio State University)

  • Bryan D. Esser

    (The Ohio State University)

  • David W. McComb

    (The Ohio State University)

  • P. Chris Hammel

    (The Ohio State University)

  • Fengyuan Yang

    (The Ohio State University)

Abstract

Low-damping magnetic materials have been widely used in microwave and spintronic applications because of their low energy loss and high sensitivity. While the Gilbert damping constant can reach 10−4 to 10−5 in some insulating ferromagnets, metallic ferromagnets generally have larger damping due to magnon scattering by conduction electrons. Meanwhile, low-damping metallic ferromagnets are desired for charge-based spintronic devices. Here, we report the growth of Co25Fe75 epitaxial films with excellent crystalline quality evident by the clear Laue oscillations and exceptionally narrow rocking curve in the X-ray diffraction scans as well as from scanning transmission electron microscopy. Remarkably, the Co25Fe75 epitaxial films exhibit a damping constant

Suggested Citation

  • Aidan J. Lee & Jack T. Brangham & Yang Cheng & Shane P. White & William T. Ruane & Bryan D. Esser & David W. McComb & P. Chris Hammel & Fengyuan Yang, 2017. "Metallic ferromagnetic films with magnetic damping under 1.4 × 10−3," Nature Communications, Nature, vol. 8(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-00332-x
    DOI: 10.1038/s41467-017-00332-x
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