期刊
MOSSBAUER SPECTROSCOPY IN MATERIALS SCIENCE - 2014
卷 1622, 期 -, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4898613
关键词
Lanthanum manganites; Mossbauer spectroscopy; X-ray diffraction
In this work, the effect of the ionic radius and concentration of a doping element on the features of the structural transformations in polycrystalline lanthanum manganites, La(1-x)A(x)MnO(3+delta) (A = Ca, Sr, Ba), has been studied by Mossbauer spectroscopy and X-ray diffraction analysis. For Mossbauer investigations, a small amount of Fe-57 (2 at%) Mossbauer isotope was introduced into the samples. It follows from the analysis of the obtained data that both common features of the structural transformations and differences between them exist in lanthanum manganites depending on ionic radius and concentration of a doping element.
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