Magnetic properties of Co-ferrite thin films prepared by PLD with in situ heating and post-annealing

Co-ferrite thin films on (1 0 0) SiO 2 substrates were deposited using pulsed laser deposition with in situ heating and post-annealing heat treatments. The structure and magnetic properties of the films were analyzed by X-ray diffractionmetry, atomic force microscopy, transmission electron microscop...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2006-08, Vol.303 (2), p.e387-e391
Main Authors: Yin, J.H., Ding, J., Chen, J.S., Miao, X.S.
Format: Article
Language:English
Subjects:
Co-ferrite films
High coercivity
In situ heating
Pulsed laser deposition
Texture structure
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Summary:Co-ferrite thin films on (1 0 0) SiO 2 substrates were deposited using pulsed laser deposition with in situ heating and post-annealing heat treatments. The structure and magnetic properties of the films were analyzed by X-ray diffractionmetry, atomic force microscopy, transmission electron microscopy, Raman spectroscopy and alternating gradient force magnetometry. High perpendicular coercivity around 8.9 kOe has been obtained in the film with in situ substrate heating at 700 °C. High coercivity of Co-ferrite thin film was found to be related to nanocystalline grain size, large lattice strain, surface roughness and preferential texture structure.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2006.01.061