Evaluation of the Fe2+/Fe3+ ratio from57Co Mössbauer emission spectra: Influence of the relaxation of Fe3+ |
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| Authors: | D. L. Nagy R. Doerfler B. Molnár G. Ritter J. Waigel N. Zeman |
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| Affiliation: | (1) Physikalisches Institut der Universität Erlangen-Nürnberg, Glückstraße 10, D-8520 Erlangen, F.R. Germany;(2) Present address: Central Research Institute for Physics, P.O.B. 49, H-1525 Budapest, Hungary |
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| Abstract: | The Fe3+ fraction after the EC of57Co is usually evaluated supposing that ferric ions contribute a quadrupole doublet to Mössbauer emission spectra. It is shown that a not sufficiently fast relaxation of the electron spins may falsify the evaluated intensity even by a factor 2. Additional information can be gained from measurements performed in a large velocity span at low temperatures in high magnetic fields. |
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