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Strain Control of Giant Magnetic Anisotropy in Metallic Perovskite SrCoO3−δ Thin Films

Journal Article


Abstract


  • Magnetic materials with large magnetic anisotropy are essential for workaday

    applications such as permanent magnets and magnetic data storage. There is widespread interest in

    finding efficient ways of controlling magnetic anisotropy, among which strain control has proven to be

    a very powerful technique. Here, we demonstrate the strain-mediated magnetic anisotropy in

    SrCoO3−δ thin film, a perovskite oxide that is metallic and adopts a cubic structure at δ ≤ 0.25. We

    find that the easy-magnetization axis in SrCoO3−δ can be rotated by 90° upon application of moderate

    epitaxial strains ranging from −1.2 to +1.8%. The magnetic anisotropy in compressive SrCoO3−δ thin

    films is huge, as shown by magnetic hysteresis loops rendering an anisotropy energy density of ∼106

    erg/cm3

    . The local variance in magnetic force microscopy upon temperature and magnetic field

    reveals that the evolution of magnetic domains in the SCO thin film is strongly dependent on

    magnetic anisotropy

Authors


  •   Hu, Songbai (external author)
  •   Cazorla, Claudio (external author)
  •   Xiang, Feixiang (external author)
  •   Ma, Hongfei (external author)
  •   Wang, Jianyuan (external author)
  •   Wang, Jianbo (external author)
  •   Wang, Xiaolin
  •   Ulrich, Clemens (external author)
  •   Chen, Lang (external author)
  •   Seidel, Jan (external author)

Publication Date


  • 2018

Citation


  • Hu, S., Cazorla, C., Xiang, F., Ma, H., Wang, J., Wang, J., Wang, X., Ulrich, C., Chen, L. & Seidel, J. (2018). Strain Control of Giant Magnetic Anisotropy in Metallic Perovskite SrCoO3−δ Thin Films. ACS Applied Materials and Interfaces, 10 (26), 22348-22355.

Scopus Eid


  • 2-s2.0-85048359472

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3188

Number Of Pages


  • 7

Start Page


  • 22348

End Page


  • 22355

Volume


  • 10

Issue


  • 26

Place Of Publication


  • United States

Abstract


  • Magnetic materials with large magnetic anisotropy are essential for workaday

    applications such as permanent magnets and magnetic data storage. There is widespread interest in

    finding efficient ways of controlling magnetic anisotropy, among which strain control has proven to be

    a very powerful technique. Here, we demonstrate the strain-mediated magnetic anisotropy in

    SrCoO3−δ thin film, a perovskite oxide that is metallic and adopts a cubic structure at δ ≤ 0.25. We

    find that the easy-magnetization axis in SrCoO3−δ can be rotated by 90° upon application of moderate

    epitaxial strains ranging from −1.2 to +1.8%. The magnetic anisotropy in compressive SrCoO3−δ thin

    films is huge, as shown by magnetic hysteresis loops rendering an anisotropy energy density of ∼106

    erg/cm3

    . The local variance in magnetic force microscopy upon temperature and magnetic field

    reveals that the evolution of magnetic domains in the SCO thin film is strongly dependent on

    magnetic anisotropy

Authors


  •   Hu, Songbai (external author)
  •   Cazorla, Claudio (external author)
  •   Xiang, Feixiang (external author)
  •   Ma, Hongfei (external author)
  •   Wang, Jianyuan (external author)
  •   Wang, Jianbo (external author)
  •   Wang, Xiaolin
  •   Ulrich, Clemens (external author)
  •   Chen, Lang (external author)
  •   Seidel, Jan (external author)

Publication Date


  • 2018

Citation


  • Hu, S., Cazorla, C., Xiang, F., Ma, H., Wang, J., Wang, J., Wang, X., Ulrich, C., Chen, L. & Seidel, J. (2018). Strain Control of Giant Magnetic Anisotropy in Metallic Perovskite SrCoO3−δ Thin Films. ACS Applied Materials and Interfaces, 10 (26), 22348-22355.

Scopus Eid


  • 2-s2.0-85048359472

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3188

Number Of Pages


  • 7

Start Page


  • 22348

End Page


  • 22355

Volume


  • 10

Issue


  • 26

Place Of Publication


  • United States