Skip to main content
placeholder image

Formation mechanism of rhombohedral L11 phase in CoPt films grown on glass substrate

Journal Article


Abstract


  • L11-CoPt(1 1 1) films were successfully fabricated on glass substrates at 300–400 °C, using Pt(1 1 1) underlayer. Magnetocrystalline anisotropy energy shows a maximum of 1.8 × 106J/m3at 350 °C. The mechanism of L11-CoPt ordering after introducing Pt underlayer is considered to be strain- or stress-induced ordering. The effect of CoPt layer thickness on phase structure and magnetic properties were investigated to confirm the ordering mechanism. Perpendicular magnetic anisotropy has been obtained in all CoPt films, while the squareness ratio and coercivity decrease with increasing film thickness, indicating decreased ordering due to the relaxation of strain or stress in thick films.

UOW Authors


  •   Gao, Ying (external author)
  •   Feng, Haifeng (external author)
  •   Cheng, Ningyan (external author)
  •   Du, Yi
  •   Harumoto, Takashi (external author)
  •   Nakamura, Yoshio (external author)
  •   Shi, Ji (external author)

Publication Date


  • 2019

Citation


  • Gao, Y., Feng, H., Cheng, N., Du, Y., Harumoto, T., Nakamura, Y. & Shi, J. (2019). Formation mechanism of rhombohedral L11 phase in CoPt films grown on glass substrate. Journal of Magnetism and Magnetic Materials, 471 406-410.

Scopus Eid


  • 2-s2.0-85054400122

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3306

Number Of Pages


  • 4

Start Page


  • 406

End Page


  • 410

Volume


  • 471

Place Of Publication


  • Netherlands

Abstract


  • L11-CoPt(1 1 1) films were successfully fabricated on glass substrates at 300–400 °C, using Pt(1 1 1) underlayer. Magnetocrystalline anisotropy energy shows a maximum of 1.8 × 106J/m3at 350 °C. The mechanism of L11-CoPt ordering after introducing Pt underlayer is considered to be strain- or stress-induced ordering. The effect of CoPt layer thickness on phase structure and magnetic properties were investigated to confirm the ordering mechanism. Perpendicular magnetic anisotropy has been obtained in all CoPt films, while the squareness ratio and coercivity decrease with increasing film thickness, indicating decreased ordering due to the relaxation of strain or stress in thick films.

UOW Authors


  •   Gao, Ying (external author)
  •   Feng, Haifeng (external author)
  •   Cheng, Ningyan (external author)
  •   Du, Yi
  •   Harumoto, Takashi (external author)
  •   Nakamura, Yoshio (external author)
  •   Shi, Ji (external author)

Publication Date


  • 2019

Citation


  • Gao, Y., Feng, H., Cheng, N., Du, Y., Harumoto, T., Nakamura, Y. & Shi, J. (2019). Formation mechanism of rhombohedral L11 phase in CoPt films grown on glass substrate. Journal of Magnetism and Magnetic Materials, 471 406-410.

Scopus Eid


  • 2-s2.0-85054400122

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3306

Number Of Pages


  • 4

Start Page


  • 406

End Page


  • 410

Volume


  • 471

Place Of Publication


  • Netherlands