Applied Science and Convergence Technology

The Korean Vacuum Society (한국진공학회)
권호 표지
DOI QR코드

DOI QR Code

Magnetic Properties of Strained L10-ordered FePt and CoPt: An ab initio Study

  • Choi, Heechae (Center for Computational Science, Korea Institute of Science and Technology)
  • Received : 2014.08.14
  • Accepted : 2014.09.24
  • Published : 2014.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

Using ab initio calculations, the effects of uniaxial, biaxial, and hydrostatic strains on the magnetocrystalline anisotropy of $L1_0$-orderd FePt and CoPt alloys were systematically investigated. Interestingly, the rates and the signs of magnetocrystalline anisotropy changes of FePt and CoPt were determined by the directions and dimensions of strains. The calculation results are consistent with the previous experimental observations and are expected to provide directions to tailor magnetic properties of various types of $L1_0$-ordered FePt and CoPt systems.

Keywords

References

  1. M. Kohda, S. Iimori, R. Ohsugi, H. Naganuma, T. Miyazaki, Y. Ando, and J. Nitta,. Appl. Phys. Lett. 102, 102411 (2013). https://doi.org/10.1063/1.4795443
  2. J. S. Chen, B. C. Lim, J. F. Hu, Y. K. Lim, B. Liu, and G. M. Chow, Appl. Phys. Lett. 90, 042508 (2007). https://doi.org/10.1063/1.2430910
  3. N. A. Usov and J. M. Barandiaran, Appl. Phys. Lett. 101, 172402 (2012). https://doi.org/10.1063/1.4761978
  4. F.-T. Yuan, A. C. Sun, Jui-Kuo Mei, W. M. Liao, Jen-Hwa Hsu, and H. Y. Lee, J. Appl. Phys. 109, 07B743 (2011). https://doi.org/10.1063/1.3560046
  5. W. Zhu, Y. Liu, and C.-G. Duan, Appl. Phys. Lett. 99, 032508 (2011). https://doi.org/10.1063/1.3615664
  6. C. Feng, H. Li, D. Wei, M. Yang, B. Li, Q. Zhan, and G. Yu, J. Phys. D: Appl. Phys. 44, 245001 (2011). https://doi.org/10.1088/0022-3727/44/24/245001
  7. C. L. Zha, S. H. He, B. Ma, Z. Z. Zhang, F. X. Gan, and Q. Y. Jin, IEEE Trans. Magn. 44, 3539 (2008). https://doi.org/10.1109/TMAG.2008.2001609
  8. Y. F. Ding, J. S. Chen, E. Liu, C. J. Sun, and G. M. Chow, J. Appl. Phys. 97, 10H303 (2005). https://doi.org/10.1063/1.1851419
  9. M. Rennhofer, M. Kozlowski, B. Laenens, B. Sepiol, R. Kozubski, D. Smeets, and A. Vantomme, Intermetallics 18, 2069 (2010). https://doi.org/10.1016/j.intermet.2010.06.011
  10. S. N. Hsiao, S. K. Chen, S. H. Liu, C. J. Liao, F. T. Yuan and H. Y. Lee, IEEE Trans. Magn. 47, 3637 (2011). https://doi.org/10.1109/TMAG.2011.2147291
  11. J. K. Mei, F. T. Yuan, W. M. Liao, Y. D. Yao, H. M. Lin, H. Y. Lee, and J. H. Hsu, J. Appl. Phys. 109, 07A737 (2011). https://doi.org/10.1063/1.3564950
  12. J. K. Mei, F. T. Yuan, W. M. Liao, A. C. Sun, Y. D. Yao, H. M. Lin, J. H. Hsu, and H. Y. Lee, IEEE Trans. Magn. 47, 3633 (2011). https://doi.org/10.1109/TMAG.2011.2158191
  13. J. P. Perdew, K. Burke, and M. Ernzerhof, Phys. Rev. Lett. 78, 1396 (1997).
  14. G. Kresse and J. Furthmuller, 2001 Vienna Ab-initio Simulation Package (University of Wien).
  15. E. K. Lee, H. Choi, Y. Hwang, and Y.-C. Chung, J. Appl. Phys. 109, 07B764 (2011). https://doi.org/10.1063/1.3565192
  16. G. Kresse and D. Joubert, Phys. Rev. B 59, 1758 (1999).
  17. J. P. Perdew, J. A. Chevary, S. H. Vosko, K. A. Jackson, M. R. Pederson, D. J. Singh, and C. Fiolhais, Phys. Rev. B 46, 6671 (1992). https://doi.org/10.1103/PhysRevB.46.6671
  18. G. Kresse and J. Hafner, Phys. Rev. B, 47, 558 (1993). https://doi.org/10.1103/PhysRevB.47.558
  19. H. J. Monkhorst and J. D. Pack, Phys. Rev. B 13, 5188 (1976). https://doi.org/10.1103/PhysRevB.13.5188
  20. C. Liu, T. J. Klemmer, N. Shukla, X. Wu, D. Weller, M. Tanase, and D. Laughlin, J. Magn. Magn. Mater. 266, 96 (2003). https://doi.org/10.1016/S0304-8853(03)00460-8
  21. M. Allalen, H. Bouzar, and T. Mehaddene, Eur. Phys. J. B 45, 443 (2005). https://doi.org/10.1140/epjb/e2005-00206-4
  22. C. L. Platt, K. W. Wierman, E. B. Svedberg, R. van de Veerdonk, J. K. Howard, A. G. Roy, and D. E. Laughlin, J. Appl. Phys. 92, 6104 (2002). https://doi.org/10.1063/1.1516870
  23. S. H. Lee and S. H. Eun, Physica B 406, 2646 (2011). https://doi.org/10.1016/j.physb.2011.04.007
  24. T. Seki, T. Shima, K. Takanashi, Y. Takahashi, E. Matsubara, and K. Hono, Appl. Phys. Lett. 82, 2461 (2003). https://doi.org/10.1063/1.1567053
  25. H. Yamaguchi, O. Kitakami, S. Okamoto, Y. Shimada, K. Oikawa, K. Fukamichi, and T.-H. Chiang, Mater. Trans. 44, 1514 (2003). https://doi.org/10.2320/matertrans.44.1514
  26. J. Y. Ahn, N. J. Lee, T. H. Kim, J.-H. Lee, A. Michel, and Dominique Eyidi, J. Appl. Phys. 109, 07B760 (2011). https://doi.org/10.1063/1.3562506