title: Nanoscale crystal imperfection-induced characterization changes of manganite nanolayers with various crystallographic textures.
abstract: (La,Sr)MnO3 (LSMO) nanolayers with various crystallographic textures were grown on the sapphire substrate with and without In2O3 epitaxial buffering. The LSMO nanolayer with In2O3 epitaxial buffering has a (110) preferred orientation. However, the nanolayer without buffering shows a highly (100)-oriented texture. Detailed microstructure analyses show that the LSMO nanolayer with In2O3 epitaxial buffering has a high degree of nanoscale disordered regions (such as subgrain boundaries and incoherent heterointerfaces) in the film. These structural inhomogeneities caused a low degree of ferromagnetic ordering in LSMO with In2O3 epitaxial buffering, which leads to a lower saturation magnetization value and Curie temperature, and higher coercivity and resistivity.
authors.affiliation: Institute of Materials Engineering, National Taiwan Ocean University, Keelung 20224, Taiwan. yuanvictory@gmail.com.
authors.forename: Yuan-Chang
authors.initials: YC
authors.lastname: Liang
authors.forename: Hua
authors.initials: H
authors.lastname: Zhong
authors.forename: Wen-Kai
authors.initials: WK
authors.lastname: Liao
references.citation: Nanoscale. 2013 Mar 21;5(6):2346-51
references.pmid: 23392563
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references.pmid: 9979541