Please use this identifier to cite or link to this item: https://doi.org/10.1038/srep19886
Title: Effects of strain relaxation in Pr0.67Sr0.33MnO3 films probed by polarization dependent X-ray absorption near edge structure
Authors: Zhang, B 
Chen, J 
Yang, P 
Chi, X 
Lin, W 
Venkatesan, T 
Sun, C.-J
Heald, S.M
Chow, G.M 
Keywords: anisotropy
crystal structure
geometry
leisure
polarization
probability
rotation
thickness
X ray
X ray diffraction
Issue Date: 2016
Publisher: Nature Publishing Group
Citation: Zhang, B, Chen, J, Yang, P, Chi, X, Lin, W, Venkatesan, T, Sun, C.-J, Heald, S.M, Chow, G.M (2016). Effects of strain relaxation in Pr0.67Sr0.33MnO3 films probed by polarization dependent X-ray absorption near edge structure. Scientific Reports 6 : 19886. ScholarBank@NUS Repository. https://doi.org/10.1038/srep19886
Abstract: The Mn K edge X-ray absorption near edge structure (XANES) of Pr0.67Sr0.33MnO3 films with different thicknesses on (001) LaAlO3 substrate was measured, and the effects of strain relaxation on film properties were investigated. The films showed in-plane compressive and out-of-plane tensile strains. Strain relaxation occurred with increasing film thickness, affecting both lattice constant and MnO6 octahedral rotation. In polarization dependent XANES measurements using in-plane (parallel) and out-of-plane (perpendicular) geometries, the different values of absorption resonance energy Er confirmed the film anisotropy. The values of Er along these two directions shifted towards each other with increasing film thickness. Correlating with X-ray diffraction (XRD) results it is suggested that the strain relaxation decreased the local anisotropy and corresponding probability of electronic charge transfer between Mn 3d and O 2p orbitals along the in-plane and out-of-plane directions. The XANES results were used to explain the film-thickness dependent magnetic and transport properties. © 2016, Nature Publishing Group. All rights reserved.
Source Title: Scientific Reports
URI: https://scholarbank.nus.edu.sg/handle/10635/175434
ISSN: 20452322
DOI: 10.1038/srep19886
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