Giant magnetoresistance in granular cobalt copper thin films prepared by pulsed laser ablation deposition
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 o...
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| Format: | Article |
| Language: | English English English |
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Elsevier Science
1996
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| Online Access: | http://psasir.upm.edu.my/id/eprint/42496/ http://psasir.upm.edu.my/id/eprint/42496/1/Giant%20magnetoresistance%20in%20granular%20cobalt%20copper%20thin%20films%20prepared%20by%20pulsed%20laser%20ablation%20deposition.pdf http://psasir.upm.edu.my/id/eprint/42496/7/1-s2.0-0304885395006486-main.pdf http://psasir.upm.edu.my/id/eprint/42496/8/1-s2.0-0304885395006486-main.pdf |
| _version_ | 1848849978784481280 |
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| author | Jackson, Timothy James Palmer, Stuart B. Blythe, Harry J. Shaari, Abdul Halim |
| author_facet | Jackson, Timothy James Palmer, Stuart B. Blythe, Harry J. Shaari, Abdul Halim |
| author_sort | Jackson, Timothy James |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-15T09:58:59Z |
| format | Article |
| id | upm-42496 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English English |
| last_indexed | 2025-11-15T09:58:59Z |
| publishDate | 1996 |
| publisher | Elsevier Science |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-424962024-08-05T06:18:35Z http://psasir.upm.edu.my/id/eprint/42496/ Giant magnetoresistance in granular cobalt copper thin films prepared by pulsed laser ablation deposition Jackson, Timothy James Palmer, Stuart B. Blythe, Harry J. Shaari, Abdul Halim 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. Elsevier Science 1996-06 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/42496/1/Giant%20magnetoresistance%20in%20granular%20cobalt%20copper%20thin%20films%20prepared%20by%20pulsed%20laser%20ablation%20deposition.pdf text en http://psasir.upm.edu.my/id/eprint/42496/7/1-s2.0-0304885395006486-main.pdf text en http://psasir.upm.edu.my/id/eprint/42496/8/1-s2.0-0304885395006486-main.pdf 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 http://www.sciencedirect.com/science/article/pii/0304885395006486 10.1016/0304-8853(95)00648-6 |
| spellingShingle | Jackson, Timothy James Palmer, Stuart B. Blythe, Harry J. Shaari, Abdul Halim Giant magnetoresistance in granular cobalt copper thin films prepared by pulsed laser ablation deposition |
| title | Giant magnetoresistance in granular cobalt copper thin films prepared by pulsed laser ablation deposition |
| title_full | Giant magnetoresistance in granular cobalt copper thin films prepared by pulsed laser ablation deposition |
| title_fullStr | Giant magnetoresistance in granular cobalt copper thin films prepared by pulsed laser ablation deposition |
| title_full_unstemmed | Giant magnetoresistance in granular cobalt copper thin films prepared by pulsed laser ablation deposition |
| title_short | Giant magnetoresistance in granular cobalt copper thin films prepared by pulsed laser ablation deposition |
| title_sort | giant magnetoresistance in granular cobalt copper thin films prepared by pulsed laser ablation deposition |
| url | http://psasir.upm.edu.my/id/eprint/42496/ http://psasir.upm.edu.my/id/eprint/42496/ http://psasir.upm.edu.my/id/eprint/42496/ http://psasir.upm.edu.my/id/eprint/42496/1/Giant%20magnetoresistance%20in%20granular%20cobalt%20copper%20thin%20films%20prepared%20by%20pulsed%20laser%20ablation%20deposition.pdf http://psasir.upm.edu.my/id/eprint/42496/7/1-s2.0-0304885395006486-main.pdf http://psasir.upm.edu.my/id/eprint/42496/8/1-s2.0-0304885395006486-main.pdf |