Evidence of the anomalous charge state 57Fe4+ in the nuclear decay of 57Co3+

The first observation of the elusive Fe4+ charge state coming from the nuclear decay of 57Co3+ has been found in the Mössbauer emission spectra of 57Co:La2Li0.5Co0.5O4. A Ti-doped sample was prepared in order to show that the Fe4+ fraction can be conveniently monitored. Both results were predicted o...

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Bibliographic Details
Authors: Fontcuberta i Griñó, Josep; Fernández Renna, Ana Inés; Goodenough, John B.
Format: Article
Status:Published version
Publication date:1986
Country:España
Institution:Universidad de Barcelona
Repository:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/13178
Online Access:https://hdl.handle.net/2445/13178
Access Level:Open access
Keyword:Matèria condensada
Física de l'estat sòlid
Estructura electrònica
Condensed matter
Solid state physics
Electronic structure
Description
Summary:The first observation of the elusive Fe4+ charge state coming from the nuclear decay of 57Co3+ has been found in the Mössbauer emission spectra of 57Co:La2Li0.5Co0.5O4. A Ti-doped sample was prepared in order to show that the Fe4+ fraction can be conveniently monitored. Both results were predicted on the basis of the electronic energy-band scheme of these oxides.