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Giant magnetoresistance in granular cobalt copper thin films prepared by pulsed laser ablation deposition


Citation

Jackson, Timothy James and Palmer, Stuart B. and Blythe, Harry J. and Shaari, Abdul Halim (1996) Giant magnetoresistance in granular cobalt copper thin films prepared by pulsed laser ablation deposition. Journal of Magnetism and Magnetic Materials, 159 (1-2). pp. 269-281. ISSN 0304-8853; ESSN: 1873-4766

Abstract / Synopsis

Giant magnetoresistance of up to 9.5% in 1.5 T at 14 K has been observed in Co19Cu81, thin films prepared by pulsed laser ablation deposition from rotated, split targets. The as-grown films show a small GMR effect but this may be enhanced by a factor of 4 by appropriate annealing. The volume ratio of material in the target is found to be reproduced in the film. Measurements of the remanence and initial susceptibility of the films indicate a distribution of energy barriers to the rotation of the magnetic moments of the cobalt particles and also the presence of inter-particle interactions. The choice of operating parameters to control these effects and thus optimise the GMR is discussed.


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Additional Metadata

Item Type: Article
Divisions: Universiti Pertanian Malaysia
DOI Number: https://doi.org/10.1016/0304-8853(95)00648-6
Publisher: Elsevier Science
Keywords: Giant magnetoresistance; Pulsed laser ablation deposition
Depositing User: Nabilah Mustapa
Date Deposited: 14 Apr 2016 11:43
Last Modified: 14 Apr 2016 11:43
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/0304-8853(95)00648-6
URI: http://psasir.upm.edu.my/id/eprint/42496
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