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MAGNETIC PROPERTIES AND ANISOTROPY OF GdFe AMORPHOUS THIN FILMS

M. A. Cerdeira1,* , A. V. Svalova2, A. Fernandez2, V. O. Vas’kovskiya2, M. Tejedor2, G. V. Kurlyandskayaa2

Affiliation

  1. Universidad de Oviedo, Facultad de Ciencias, Departamento de Fisica, Avda Calvo Sotelo s/n, 33007 Oviedo, Asturias, Spain
  2. Universidad de Oviedo, Facultad de Ciencias, Departamento de Fisica, Avda Calvo Sotelo s/n, 33007 Oviedo, Asturias, Spain

Abstract

Two types of Gd-Fe amorphous thin films, one Fe-rich (Gd0.21Fe0.79 ) and the other Gd-rich (Gd0.46Fe0.54), have been studied by magneto-optical transversal Kerr effect and by torque magnetometry. The samples were measured at different temperatures before and after annealing. Changes in the magnetisation were observed in both samples after annealing. In addition the Gd-rich film shows a perpendicular magnetic anisotropy at low temperatures after heat treatment at 350o C. However in the case of Fe-rich film there was no change in the magnetic anisotropy after the annealing..

Keywords

Amorphous thin films, Kerr effect, Anisotropy.

Submitted at: April 26, 2004
Accepted at: June 10, 2004

Citation

M. A. Cerdeira, A. V. Svalova, A. Fernandez, V. O. Vas’kovskiya, M. Tejedor, G. V. Kurlyandskayaa, MAGNETIC PROPERTIES AND ANISOTROPY OF GdFe AMORPHOUS THIN FILMS, Journal of Optoelectronics and Advanced Materials Vol. 6, Iss. 2, pp. 599-602 (2004)