Premium
Mössbauer emission studies of 57 Co‐doped ZnO, Cu 2 O, and TiCoO 3
Author(s) -
Roset J.,
Fernández A.,
Obradors X.,
Tejada J.
Publication year - 1986
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221340136
Subject(s) - ferrous , mössbauer spectroscopy , oxide , analytical chemistry (journal) , acceptor , doping , grain boundary , materials science , spectral line , ferric , mössbauer effect , inorganic chemistry , crystallography , chemistry , metallurgy , condensed matter physics , physics , microstructure , optoelectronics , chromatography , astronomy
57 Co‐doped Mössbauer oxide sources are prepared at different temperatures and oxidation pressures. The appearance of the 57 Fe 3+ anomalous charge state is related with the p‐character of semiconductor oxide. Increasing the acceptor concentration increases the anomalous ferric line intensity in the Mössbauer spectra. The two location sites of 57 Co in the ZnO matrix correspond to substitutional and grain boundary sites, respectively. The n‐character of ZnO oxide makes possible the appearance of the ferrous state in the corresponding Mössbauer spectra.