Studies on Giant and Colossal Magnetoresistance of Alloy and Ceramic Prepared by RF Magnetron Sputtering and Pulsed Laser Ablation Techniques

Magnetic thin films based on the giant magnetoresistance (GMR) and colossal magnetoresistance (CMR) effects are currently being used as head sensor in the magnetic data storage technology. With the technological revolution in the magnetic recording world of last decades, a need of better and more...

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Main Author:	Lim, Kean Pah
Format:	Thesis
Language:	English English
Published:	2002
Subjects:	Magnetoresistance.
Online Access:	http://psasir.upm.edu.my/id/eprint/9526/1/FSAS_2002_56_A.pdf
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id	my-upm-ir.9526
record_format	uketd_dc
spelling	my-upm-ir.95262012-08-27T05:05:55Z Studies on Giant and Colossal Magnetoresistance of Alloy and Ceramic Prepared by RF Magnetron Sputtering and Pulsed Laser Ablation Techniques 2002-11 Lim, Kean Pah Magnetic thin films based on the giant magnetoresistance (GMR) and colossal magnetoresistance (CMR) effects are currently being used as head sensor in the magnetic data storage technology. With the technological revolution in the magnetic recording world of last decades, a need of better and more sensitive magnetoresistance material arises for head sensing. In the first part of this work, a series of Ag-Fe-Co granular films with different composition and thickness had been fabricated onto microscope glass slides using RF magnetron sputtering system. The crystalline analysis show that the as-deposited films consist of <111> and <200> silver texture. Negative GMR values have been obtained and no tendency to saturate at any temperature has been observed. The experimental results show that the GMR value is governed by the composition, microstructure, thickness and temperature. Under an optimum condition, formation of the right shape and size of magnetic cluster in the matrix will cause rapid increase of the GMR value. Magnetoresistance. 2002-11 Thesis http://psasir.upm.edu.my/id/eprint/9526/ http://psasir.upm.edu.my/id/eprint/9526/1/FSAS_2002_56_A.pdf application/pdf en public phd doctoral Universiti Putra Malaysia Magnetoresistance. Faculty of Science and Environmental Studies English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Magnetoresistance.
spellingShingle	Magnetoresistance. Lim, Kean Pah Studies on Giant and Colossal Magnetoresistance of Alloy and Ceramic Prepared by RF Magnetron Sputtering and Pulsed Laser Ablation Techniques
description	Magnetic thin films based on the giant magnetoresistance (GMR) and colossal magnetoresistance (CMR) effects are currently being used as head sensor in the magnetic data storage technology. With the technological revolution in the magnetic recording world of last decades, a need of better and more sensitive magnetoresistance material arises for head sensing. In the first part of this work, a series of Ag-Fe-Co granular films with different composition and thickness had been fabricated onto microscope glass slides using RF magnetron sputtering system. The crystalline analysis show that the as-deposited films consist of <111> and <200> silver texture. Negative GMR values have been obtained and no tendency to saturate at any temperature has been observed. The experimental results show that the GMR value is governed by the composition, microstructure, thickness and temperature. Under an optimum condition, formation of the right shape and size of magnetic cluster in the matrix will cause rapid increase of the GMR value.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Lim, Kean Pah
author_facet	Lim, Kean Pah
author_sort	Lim, Kean Pah
title	Studies on Giant and Colossal Magnetoresistance of Alloy and Ceramic Prepared by RF Magnetron Sputtering and Pulsed Laser Ablation Techniques
title_short	Studies on Giant and Colossal Magnetoresistance of Alloy and Ceramic Prepared by RF Magnetron Sputtering and Pulsed Laser Ablation Techniques
title_full	Studies on Giant and Colossal Magnetoresistance of Alloy and Ceramic Prepared by RF Magnetron Sputtering and Pulsed Laser Ablation Techniques
title_fullStr	Studies on Giant and Colossal Magnetoresistance of Alloy and Ceramic Prepared by RF Magnetron Sputtering and Pulsed Laser Ablation Techniques
title_full_unstemmed	Studies on Giant and Colossal Magnetoresistance of Alloy and Ceramic Prepared by RF Magnetron Sputtering and Pulsed Laser Ablation Techniques
title_sort	studies on giant and colossal magnetoresistance of alloy and ceramic prepared by rf magnetron sputtering and pulsed laser ablation techniques
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Science and Environmental Studies
publishDate	2002
url	http://psasir.upm.edu.my/id/eprint/9526/1/FSAS_2002_56_A.pdf
_version_	1747810973680402432

Studies on Giant and Colossal Magnetoresistance of Alloy and Ceramic Prepared by RF Magnetron Sputtering and Pulsed Laser Ablation Techniques

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