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Mössbauer study of the valence state of 57Fe after 57Co decay in CoFe2O4

✍ Scribed by A. Cruset; J. M. Friedt

Publisher
John Wiley and Sons
Year
1971
Tongue
English
Weight
251 KB
Volume
45
Category
Article
ISSN
0370-1972

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✦ Synopsis

Abstract

The Mössbauer emission spectrum of ^57^Co in CoFe~2~O~4~ is reported. Electron capture leads to the formation of ^57^Fe^3+^ substituting ^57^Co^2+^. The stabilization of the aliovalent charge state is consistent with an electrostatic model.

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✍ S. Nasu; M. Yoshida; Y. Oda; K. Asayama; F.E. Fujita; T. Kohara; S. Katsuyama; Y 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 177 KB

57Co emission M6ssbauer measurements have been performed for YBa2Cu306.92 (1-2-307) as well as YBa2Cu306.O (1-2-306) at room temperature and compared with the results from 57Fe absorber experiments reported previously. It is found that the Co atoms mainly substitute Cul chain sites in 1-2-307 but ab