Temperature Dependence of Magnetic State of Fe/Al Multilayered Films

  • Lee, S. J. (Korea University) ;
  • J. S. Baek (Korea University) ;
  • Kim, Y. Y. (Korea University) ;
  • W. Y. Lim (Korea University) ;
  • W. Abdul-Razzaq (West Virginia University)
  • Published : 1997.09.01

Abstract

We investigated the temperature dependence of magnetization of Fe/Al multilayers fabricated by dc magnetron sputtering system. As the temperature increased from 5 K in a low magnetic field (100G) the magnetization of the samples increased and made a broad peak at some critical temperature. Further increase of temperature decresed the magnetization as an ardinary ferromagnetic curve. Part of samples show rapid increase of magnetization at low temperature. A model developed in this study suggests that the biquadratic coupling yields such a rapidly increasing behavior of magnetization at low temperature.

Keywords

References

  1. Phys. Stat. Sol. (a) v.125 M. Ruhrig;R. Schafer;A. Hubert;R. Mosler;J. A. Wolf;S. Demokritov;P. Grnberg
  2. J. Magn. Magn. Mater. v.103 A. Fuβ;S. Demokritov;P. Grunberg;W. Zinn
  3. Phys. Rev. Lett. v.67 J. C. Slonczewski
  4. J. Appl. Phys. v.73 J. C. Slonczewski
  5. IEEE Trans. Magn. v.32 no.5 S. J. Lee;J. S. Baek;Y. Y. Kim;W. Y. Lim;W. Abdul-Razzaq
  6. J. Appl. Phys. v.73 M. E. Filipkowski;C. J. G. tierrez;J. J. Krebs;G. A. Prinz
  7. Phys. Rev. B. v.47 J. R. Cullen;K. B. Hathaway