57Fe and 119Sn probe Mössbauer spectroscopy investigation of perovskite-type double manganite family CaCuxMn7 –xO12 (x = 0, 0.15, 3)
BARANOV, Alexey
Moscow State University
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
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Moscow State University
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Language
en
Article de revue
This item was published in
Bulletin of the Russian Academy of Sciences - Physics. 2011, vol. 75, n° 2, p. 271-276
Springer Verlag/Russian Academy of Sciences (RAS)
English Abstract
CaCuxMn7 – xO12 (x = 0, 0.15, 3) manganites were studied by 57Fe and 119Sn probe Mössbauer spectroscopy. It was established that the 57Fe and 119Sn probe cations are stabilized in the octahedral positions of the manganite ...Read more >
CaCuxMn7 – xO12 (x = 0, 0.15, 3) manganites were studied by 57Fe and 119Sn probe Mössbauer spectroscopy. It was established that the 57Fe and 119Sn probe cations are stabilized in the octahedral positions of the manganite structures by substituting the manganese cations. The magnetic and structure phase transition temperatures of CaMn7O12 and CaCu0.15Mn6.85O12 manganites fell upon the introduction of 57Fe probe cations into their structures. It was concluded that intrasublattice Mn4+–O–Mn4+ exchange interactions play a noticeable role in the formation of the magnetic structure of CaCu3Mn4O12 manganite.Read less <
Origin
Hal imported