An investigation of structure, magnetic properties and magnetoresistance of Ni films prepared by sputtering

Ni films were deposited by magnetron sputtering with a relatively high deposition rate (0.5 nm/s). We have investigated the structure and magnetic properties of Ni films with different thicknesses. Strongly reduced magnetization has been found in the as-deposited Ni film. Our structural investigatio...

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Main Authors: Yi, J. B., Zhou, Y. Z., Wee, A. T. S., Yu, X. J., Ding, Jun, Chow, Gan Moog, Dong, Zhili, White, Timothy John, Gao, Xing Yu
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2012
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Online Access:https://hdl.handle.net/10356/95672
http://hdl.handle.net/10220/8288
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-956722023-07-14T15:44:47Z An investigation of structure, magnetic properties and magnetoresistance of Ni films prepared by sputtering Yi, J. B. Zhou, Y. Z. Wee, A. T. S. Yu, X. J. Ding, Jun Chow, Gan Moog Dong, Zhili White, Timothy John Gao, Xing Yu School of Materials Science & Engineering DRNTU::Engineering::Materials Ni films were deposited by magnetron sputtering with a relatively high deposition rate (0.5 nm/s). We have investigated the structure and magnetic properties of Ni films with different thicknesses. Strongly reduced magnetization has been found in the as-deposited Ni film. Our structural investigation (high-resolution TEM, EXAFS) reveals the presence of amorphous structure. The crystallinity increases with increasing film thickness, accompanied by an increase of magnetization. In 15 nm film or below, circular crystallites were found after annealing at 500 °C. Anisotropic magnetoresistance (AMR) has been observed and it is strongly dependent on the microstructure. Accepted version 2012-07-05T00:50:09Z 2019-12-06T19:19:32Z 2012-07-05T00:50:09Z 2019-12-06T19:19:32Z 2004 2004 Journal Article Yi, J. B., Zhou, Y. Z., Ding, J., Chow, G. M., Dong, Z. L., White, T., et al. (2004). An investigation of structure, magnectic properties and magnetoresistance of Ni films prepared by sputtering. Journal of Magnetism and Magnetic Materials, 284, 303-311. https://hdl.handle.net/10356/95672 http://hdl.handle.net/10220/8288 10.1016/j.jmmm.2004.06.052 en Journal of magnetism and magnetic materials © 2004 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Magnetism and Magnetic Materials, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: http://dx.doi.org/10.1016/j.jmmm.2004.06.052. 26 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Materials
spellingShingle DRNTU::Engineering::Materials
Yi, J. B.
Zhou, Y. Z.
Wee, A. T. S.
Yu, X. J.
Ding, Jun
Chow, Gan Moog
Dong, Zhili
White, Timothy John
Gao, Xing Yu
An investigation of structure, magnetic properties and magnetoresistance of Ni films prepared by sputtering
description Ni films were deposited by magnetron sputtering with a relatively high deposition rate (0.5 nm/s). We have investigated the structure and magnetic properties of Ni films with different thicknesses. Strongly reduced magnetization has been found in the as-deposited Ni film. Our structural investigation (high-resolution TEM, EXAFS) reveals the presence of amorphous structure. The crystallinity increases with increasing film thickness, accompanied by an increase of magnetization. In 15 nm film or below, circular crystallites were found after annealing at 500 °C. Anisotropic magnetoresistance (AMR) has been observed and it is strongly dependent on the microstructure.
author2 School of Materials Science & Engineering
author_facet School of Materials Science & Engineering
Yi, J. B.
Zhou, Y. Z.
Wee, A. T. S.
Yu, X. J.
Ding, Jun
Chow, Gan Moog
Dong, Zhili
White, Timothy John
Gao, Xing Yu
format Article
author Yi, J. B.
Zhou, Y. Z.
Wee, A. T. S.
Yu, X. J.
Ding, Jun
Chow, Gan Moog
Dong, Zhili
White, Timothy John
Gao, Xing Yu
author_sort Yi, J. B.
title An investigation of structure, magnetic properties and magnetoresistance of Ni films prepared by sputtering
title_short An investigation of structure, magnetic properties and magnetoresistance of Ni films prepared by sputtering
title_full An investigation of structure, magnetic properties and magnetoresistance of Ni films prepared by sputtering
title_fullStr An investigation of structure, magnetic properties and magnetoresistance of Ni films prepared by sputtering
title_full_unstemmed An investigation of structure, magnetic properties and magnetoresistance of Ni films prepared by sputtering
title_sort investigation of structure, magnetic properties and magnetoresistance of ni films prepared by sputtering
publishDate 2012
url https://hdl.handle.net/10356/95672
http://hdl.handle.net/10220/8288
_version_ 1772827860021542912