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Title: Strain-dependent surface evolution and magneto-transport properties of La0.7Sr0.3MnO3 epilayers on SrTiO3 substrates
Authors: Yuan-Chang Liang;Yung-Ching Liang
Contributors: NTOU:Institute of Materials Engineering
Keywords: A1. Characterization;B1. Manganites;B1. Oxides;B1. Perovskites
Date: 2007-06-01
Issue Date: 2011-10-20T08:07:24Z
Publisher: Journal of Crystal Growth
Abstract: Abstract:This study investigated how lattice strain affects the surface morphology of La0.7Sr0.3MnO3 (LSMO) epilayers on SrTiO3 (STO) substrates by X-ray scattering and atomic force microscopy (AFM). Almost pseudomorphic growth of LSMO epilayers is observed up to a thickness of 300 Å on an STO substrate. The Jahn-Teller strain in the LSMO lattice increases as the epilayer thickness falls. The dynamic roughness exponent of the rapid roughening regime associated with the strain relief is ∼1.029. Variations in magnetic and transport properties of LSMO epilayers are discussed with reference to changes in the lattice strain in the LSMO epilayers.
Relation: 304(1), pp.275-280
URI: http://ntour.ntou.edu.tw/handle/987654321/23709
Appears in Collections:[材料工程研究所] 期刊論文

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