DOI QR코드

DOI QR Code

Effect of Annealing and Co contents on the Structural and Physical Properties in AlN Thin Films

  • Han, Chang-Suk (Dept. of Defense Science & Technology, Hoseo University) ;
  • Han, Seung-Oh (Institute of Fusion Technology, Hoseo University)
  • Received : 2010.10.21
  • Accepted : 2010.11.12
  • Published : 2010.11.30

Abstract

Aluminum nitride (AlN) thin films containing various amounts of Co content have been deposited by using a two-facing targets type sputtering (TFTS) system. The deposited films were also annealed successively and isothermally at different temperatures. Annealing treatment can control the physical properties as well as the microstructure of AlN films with Co particles. High magnetization and high resistivity are obtainable in AlN films containing dispersed Co particles. The coercivity of the films does not depend on annealing time, but it increases with increasing annealing temperature due to the increase of the grain size. A high saturation magnetization of 46 kG and resistivity of 2200 ${\mu}{\Omega}$-cm was obtained for AlN films containing 25 at% Co.

Keywords

References

  1. L. N. Kotov, V. K. Turkov and V. S. Vlasov : J. Mag. & Mag. Mater., 316 (2007) 20. https://doi.org/10.1016/j.jmmm.2007.02.014
  2. R. Schwarz, M. Fernandes and J. Martins : Sensors and actuators. A, Physical, 115 (2004) 331. https://doi.org/10.1016/j.sna.2004.03.074
  3. L. Maya, W. R. Allen, A. L. Glover and J. C. Mabon : J. Vac. Sci. Tech., 13B (1995) 361.
  4. Z. Yuan, J. Shi and B. Xu : Plasma Sci. & Tech., 10 (2008) 446. https://doi.org/10.1088/1009-0630/10/4/09
  5. T. Kobayashi, M. Kubota, H. Satoh, T. Kamura, K. Yamauchi and S. Takahashi : IEEE. Trans. Magn., 21 (1985) 1536. https://doi.org/10.1109/TMAG.1985.1064053
  6. K. Takahashi, K. Ihara, S. Muraoka, H. Yoda, E. Sawai and N. Kaminaka : IEEE. Trans. Magn. 23 (1987) 2928. https://doi.org/10.1109/TMAG.1987.1065436
  7. H. Shibaya and I. Fukuda : IEEE Trans. Magn. 13 (1977) 1005. https://doi.org/10.1109/TMAG.1977.1059502
  8. R. Chubachi and N. Tamagawa : IEEE Trans. Magn. 20 (1984) 45. https://doi.org/10.1109/TMAG.1984.1063038
  9. V. Brien and P. Pigeat : J. Crystal Growth, 299 (2007) 189. https://doi.org/10.1016/j.jcrysgro.2006.10.238