Conversion electron Mossbauer studies on strontium ferrite films with in-plane and perpendicular anisotropies

Hexagonal strontium ferrite thin films with in-plane and perpendicular magn etic anisotropies have been studied using conversion electron Mossbauer spe ctroscopy. The hyperfine parameters of the films were found to be similar t o the one obtained for bulk strontium ferrite. However, the intensity ratio s of the first and second lines of the Mossbauer spectra were found to be d ifferent for films deposited at different rf powers. This indicated a chang e in the anisotropy of the deposited film. The resultant change in the magn etization direction and crystallization texture was compared to other measu rements, (C) 1998 American Institute of Physics. [S0021-8979(98)20111-3].