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Lattice strain effect in structural, magnetoresistance and electrical properties of La0.67Sr0.33MnO3 bulk and thin film system


Citation

Lim, Kean Pah and Gan, Albert Han Ming and Chen, Soo Kien and Talib, Zainal Abidin and Shaari, Abdul Halim and Ng, Siau Wei and Chin, Hui Wei (2016) Lattice strain effect in structural, magnetoresistance and electrical properties of La0.67Sr0.33MnO3 bulk and thin film system. Materials Science Forum, 846. pp. 635-640. ISSN 0255-5476; ESSN: 1662-9752

Abstract

Polycrystalline La0.67Sr0.33MnO3 (LSMO) powder prepared via conventional solid state reaction was pressed into pellet form. The pellets became target to growth thin films on corning glass (LSMO-C), fused silica (LSMO-FS) and MgO (100) (LSMO-M) substrate via pulsed laser deposition (PLD) method. XRD results showed that all samples were hexagonal structure with R-3C space group. Thin films showed relatively smaller crystallite size compared to bulk samples. From Rietveld Refinement analysis, all thin films experienced lattice strain when deposited on different substrate. LSMO compound deposited in different substrate induced structure distortion and lattice strain. Compression along c-axis occurred when the lattice strain increased thus shifted the metal-insulator transition temperature to lower temperature and increased its resistivity.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
DOI Number: https://doi.org/10.4028/www.scientific.net/MSF.846.635
Publisher: Trans Tech Publications
Keywords: Magnetoresistance; Lattice strain; Thin film
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 19 Apr 2018 04:38
Last Modified: 19 Apr 2018 04:38
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.4028/www.scientific.net/MSF.846.635
URI: http://psasir.upm.edu.my/id/eprint/54697
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