ISSN:
1588-2780
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Energy, Environment Protection, Nuclear Power Engineering
Notes:
Abstract Perovskite type oxides of Ba x Ca1−x Fe0.8Co0.2O3−δ withx=0.95, 0.8, 0.6 and 0.4 have been studied by57Fe transmission Mössbauer spectroscopy. The microenvironment of Fe was found to be sensitively dependent on the Ba to Ca ratio and, more importantly, on the oxygen content. At high Ba concentration, magnetic relaxation is indicated by the Mössbauer spectra. Identification of the various sextets and doublets in the Mössbauer spectra is attempted by the help of thermal treatments of the samples in air and methane as well as by quenching experiments and low temperature measurements.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02349499
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