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Giant magnetoresistance in granular cobalt copper thin films prepared by pulsed laser ablation deposition
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UNSPECIFIED (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.
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Abstract
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.
Item Type: | Journal Article | ||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) Q Science > QC Physics |
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Journal or Publication Title: | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | ||||
Publisher: | ELSEVIER SCIENCE BV | ||||
ISSN: | 0304-8853 | ||||
Official Date: | June 1996 | ||||
Dates: |
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Volume: | 159 | ||||
Number: | 1-2 | ||||
Number of Pages: | 13 | ||||
Page Range: | pp. 269-281 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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