AIP Advances (Mar 2019)

Controlled growth and magnetic property of a-plane-oriented Mn3Sn thin films

  • Seungjun Oh,
  • Tadashi Morita,
  • Tomoki Ikeda,
  • Masakiyo Tsunoda,
  • Mikihiko Oogane,
  • Yasuo Ando

DOI
https://doi.org/10.1063/1.5079688
Journal volume & issue
Vol. 9, no. 3
pp. 035109 – 035109-4

Abstract

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Highly a-plane-oriented Mn3Sn thin films were grown on m-plane sapphire substrates with low-temperature grown Mn3+xSn buffer layers by sputtering deposition technique, and their crystallinity and magnetic properties were investigated by X-ray diffraction and SQUID magnetometer, respectively. The crystallographic orientations of Mn3Sn domains are found to be sensitively influenced by substrate temperature, thickness and composition ratio of Mn3+αSn buffer layer. The highly a-plane-oriented Mn3Sn film shows slightly different magnetization behavior from randomly oriented Mn3Sn film, while the saturation magnetization Ms and coercivity of the highly a-plane-oriented Mn3Sn film are corresponding to that of single crystal bulk.