Abstract

The formulae for evaluating the parameters of magnetically split Mossbauer six-line spectra with quadrupole splitting from measured line positions are derived. Some special cases are considered and the suitability of the centre of gravity rule for the shift determination as well as the case of the internal magnetic field measurement from the distance of the outermost lines of the Mossbauer sextet are discussed. From the measured spectra of metallic iron the ratio of magnitudes of the nuclear magnetic moments for Fe57 ¦μ1/μ0¦= 1·701±0·008 is derived by means of the proposed method. Further, the internal magnetic field intensity at the Fe57 nucleus in metallic ironH i =(329·4±1·2) kOe and other quantities are determined.

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