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The Mössbauer Emission Spectra of Impurity 57 Cobalt in a Halide Matrix
Author(s) -
Maddock A. G.,
Williams A. F.,
Siekierska K. E.,
Fenger J.
Publication year - 1976
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.2220740119
Subject(s) - halide , spectral line , impurity , cobalt , chemistry , emission spectrum , ion , mössbauer spectroscopy , analytical chemistry (journal) , metal , line (geometry) , matrix (chemical analysis) , doping , inorganic chemistry , crystallography , materials science , physics , geometry , mathematics , organic chemistry , chromatography , astronomy , optoelectronics
The Mössbauer emission spectra of 57 Co in low concentrations in KF, NaCl, NaF, LiF, and MgF 2 , and the effects of doping NaF and LiF with La 3+ ions are reported. The monovalent halides all give similar spectra showing a broad single line or a doublet at 2.19mm/s and two overlapping doublets at 0.46 and 0.19 mm/s (w.r.t. metallic iron), although relative intensities vary. Previous Mössbauer and EPR spectroscopic data on these systems are reviewed briefly, and qualitative conclusions drawn on the chemistry of such systems.