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Enhancing perpendicular magnetocrystalline anisotropy in Fe ultrathin films by non-noble transition-metal substrate

Author

Listed:
  • Shanhu Zhou

    (School of Physical Science and Technology & Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou 215006, China)

  • Jun Hu

    (School of Physical Science and Technology & Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou 215006, China)

Abstract

Based on first-principles calculations, we studied the magnetic properties of ultrathin Fe film on a nonmagnetic substrate Ta(001). We found that the perpendicular magnetocrystalline anisotropy (PMA) of Fe/Ta(001) system with only one or two Fe atomic layer(s) can be enhanced significantly, and the corresponding magnetocrystalline anisotropy energy is enlarged tos about 3 times of that in pure ultrathin Fe film. Analysis of electronic properties demonstrates that the magnetic proximity effect at the Fe/Ta interface plays an important role in the enhancement of the PMA. Alternative arrangement of Ta and Fe layers with more Fe/Ta interfaces may further strengthen the PMA.

Suggested Citation

  • Shanhu Zhou & Jun Hu, 2020. "Enhancing perpendicular magnetocrystalline anisotropy in Fe ultrathin films by non-noble transition-metal substrate," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 31(09), pages 1-12, September.
    • Handle: RePEc:wsi:ijmpcx:v:31:y:2020:i:09:n:s012918312050134x
    DOI: 10.1142/S012918312050134X
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