Magnetoresistance studies of metallic granular and ceramic thin films for microsensor applications

Citation

Shaari, Abdul Halim and Lim, Kean Pah and Zainuddin, Hishamuddin and Abbas, Zulkifly and Wan Yusoff, Wan Mohamad Daud and Saion, Elias and Chik, Abdullah and Mohammed Sharif, Sharmiwati (2004) Magnetoresistance studies of metallic granular and ceramic thin films for microsensor applications. In: IEEE International Conference on Semiconductor Electronics (ICSE 2004), 7-9 Dec. 2004, Kuala Lumpur, Malaysia. (pp. 490-493).

Abstract

Thin films of granular metal and manganites ceramic were fabricated using RF magnetron sputtering and pulsed laser deposition techniques. The GMR effect is highly influenced by the shape, size and distribution of the magnetic entities. The highest GMR value of 7.6% for Ag87.0Fe9.5Co3.5 granular film measured at 1 Tesla at room temperature had been obtained. In the polycrystalline manganites system, low-field magnetoresistance (LFMR) had been observed due to the grain boundaries. LFMR of 4.3% and 6.2% measured at 0.1 Tesla at room temperature have been observed for both La-Sr-Mn-O and La-Ba-Mn-O samples. For the La-Sr-Mn-O film, LFMR ratio of 4.5% has been observed. This value meets the requirement as sensor element and it is currently used in many applications such as head sensing in hard disk.

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Additional Metadata

Item Type:	Conference or Workshop Item (Paper)
Divisions:	Faculty of Science
DOI Number:	https://doi.org/10.1109/SMELEC.2004.1620933
Publisher:	IEEE
Keywords:	Gaint Magnetoresistance (GMR); Colossal Magnetoresistance (CMR); Magnetoresistance (MR); Granular metallic film; Ceramic manganites
Depositing User:	Nabilah Mustapa
Date Deposited:	15 Jul 2016 03:42
Last Modified:	15 Jul 2016 03:42
Altmetrics:	http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1109/SMELEC.2004.1620933
URI:	http://psasir.upm.edu.my/id/eprint/47762
Statistic Details:	View Download Statistic

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