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Misfit strain induced lattice distortions in heteroepitaxially grown LaxCa1-xMnO3 thin films studied by extended x-ray absorption fine structure and high-resolution x-ray diffraction
KTH, School of Information and Communication Technology (ICT). (Materialfysik)
2001 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 89, no 4, 2134-2137 p.Article in journal (Refereed) Published
Abstract [en]

Mn-O and Mn-Mn interatomic distances were determined in LaxCa1-xMnO3 films grown heteroepitaxially on single crystal SrTiO3 and LaAlO3 substrates by molecular beam epitaxy. Mn-O bond lengths were found to be fixed at similar to1.975 Angstrom for both types of substrates, while the Mn-Mn distance was detected to be larger for films grown on SrTiO3 substrates than for films grown on LaAlO3. The deviation of Mn-Mn interatomic distances, and subsequently Mn-O-Mn bond angles, in epitaxial LaxCa1-xMnO3 films is attributed to the misfit strain: compressive for LaAlO3 and tensile for SrTiO3 substrates. (C) 2001 American Institute of Physics.

Place, publisher, year, edition, pages
2001. Vol. 89, no 4, 2134-2137 p.
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-84201DOI: 10.1063/1.1340603ISI: 000166688300021OAI: diva2:499268
NR 20140805Available from: 2012-02-13 Created: 2012-02-13 Last updated: 2012-02-13Bibliographically approved

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