Open Access57FE Mössbauer spectroscopy studies of Tektites from Khon Kaen, Ne Thailand
Author(s) -
B. F. O. Costa,
G. Klingelhöfer,
E. I. Alves
Publication year - 2013
Publication title -
hyperfine interactions
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.359
H-Index - 48
eISSN - 1572-9540
pISSN - 0304-3843
DOI - 10.1007/s10751-013-0769-x
Subject(s) - mössbauer spectroscopy , octahedron , quadrupole splitting , quadrupole , spectral line , spectroscopy , tetrahedron , chemistry , spectrometer , analytical chemistry (journal) , crystallography , atomic physics , physics , optics , crystal structure , quantum mechanics , astronomy , chromatography
Room temperature 57Fe Mössbauer effect spectroscopy has been used to investigate the local Fe environment in a set of indochinite tektites from Thailand. A MIMOS II spectrometer in backscattering geometry has been used in the study, so that no sample preparation at all was required. The spectra have been analysed in terms of discrete spectral components using Voigt functions. The results are similar to those obtained with analysis done with quadrupole splitting distributions. In all cases the Mössbauer spectra show a broadened asymmetric quadrupole split doublet. The Fe 2+ sites have been distinguished in Fe with octahedral and tetrahedral coordination. The Fe3+ /Fe2+ and Fe2+ tetrahedral/octahedral ratios have been determined from the relative areas of the various spectral components. Their values have been discussed in the light of actual literature.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom