Local magnetic anisotropy effects and magnetic resonance of amorphous neodymium transition metal thin films
Model calculations and magnetic resonance experiments were employed to investigate the microscopic and macroscopic properties of amorphous neodymium-iron and neodymium-cobalt thin films. The calculations yielding the magnetization as a function of the applied field and temperature, the coercivity, and the ordering temperature were performed on a random dense packed model of an amorphous neodymium-iron thin film. The model includes site dependent local random anisotropy, rare-earth rare-earth, transition-metal transition-metal, and rare-earth transition-metal exchange as well as the Zeeman energy. Variation in the intersubnetwork exchange coupling was found to lead to dramatic changes in the temperature dependence of the subnetwork magnetization. The ordering temperatures predicted by the model calculations were found to vary monotonically with the exchange coupling constants.
- Research Organization:
- Notre Dame Univ., IN (USA)
- OSTI ID:
- 7008914
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
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