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
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
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.
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-84201DOI: 10.1063/1.1340603ISI: 000166688300021OAI: oai:DiVA.org:kth-84201DiVA: diva2:499268
NR 201408052012-02-132012-02-132012-02-13Bibliographically approved