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Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/5616

Title: Modulating the magneto-crystalline anisotropy and the exchange bias field in CoFe/(Co,Fe)O bilayers using ion-beam bombardment and single crystalline substrates
Authors: Shueh, C
Cortie, D L
Klose, F
van Lierop, J
Lin, K W
Keywords: ION BEAMS
MAGNETIC PROPERTIES
THIN FILMS
TEMPERATURE RANGE 0065-0273 K
ANTIFERROMAGNETISM
FERROMAGNETISM
Issue Date: 1-Nov-2012
Publisher: IEEE INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS INC
Citation: Shueh, C., Cortie, D. L., Klose, F., van Lierop, J., & Lin, K. W. (2012). Modulating the magneto-crystalline anisotropy and the exchange bias field in CoFe/(Co,Fe)O bilayers using ion-beam bombardment and single crystalline substrates. IEEE Transactions on Magnetics, 48(11), 2892-2895.
Abstract: We report the effects of ion-beam bombardment on the room temperature and low temperature magnetic properties of ferromagnetic CoFe/antiferromagnetic (Co,Fe)O thin film bilayers. The films were deposited onto amorphous SiO(2) and single crystalline MgO(110)/(100) substrates. Magnetometry showed that ion-beam bombardment was capable of modifying the coercivity and loop shape for the thin film system at room temperature, corresponding to alteration of the effective magneto-crystalline anisotropy field. After field cooling to 50 K, a shifted hysteresis loop was seen for those films containing a proportion of the antiferromagnetic rock-salt (Co,Fe)O phase, with an exchange bias magnitude that depended on the ion-beam bombardment conditions. Our results indicate that matching the substrate with appropriate ion-bombardment conditions provides a promising way to engineer selectively two important types of magnetic anisotropy in ferromagnetic/antiferromagnetic bilayers: magneto-crystalline and exchange bias. © 2012, Institute of Electrical and Electronics Engineers (IEEE).
URI: http://dx.doi.org/10.1109/TMAG.2012.2201144
http://apo.ansto.gov.au/dspace/handle/10238/5616
ISSN: 0018-9464
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