Premium
Measurement of Mössbauer Diffusion Broadening in α‐Iron Stabilized with Vanadium
Author(s) -
Lindsey R.
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.2220750222
Subject(s) - vanadium , doppler broadening , diffusion , mössbauer spectroscopy , thermal diffusivity , uncorrelated , homogeneous broadening , materials science , curie temperature , debye , analytical chemistry (journal) , chemistry , condensed matter physics , thermodynamics , spectral line , crystallography , physics , metallurgy , statistics , mathematics , chromatography , astronomy , ferromagnetism
The diffusion of iron 57 in α‐iron stabilized by small amounts of vanadium is studied by means of the Mössbauer effect. The Mössbauer line broadening is found to be proportional to the diffusivity. The broadening observed is found to be about half that predicted in uncorrelated sudden jump model of Sing wi and Sjölander. The observed lineshapes are Lorentzian to within experimental errors. The data indicates that the recoil‐free fraction falls off more rapidly than predicted by a Debye model at temperatures where diffusion broadening is observed. An effective Mossbauer characteristic temperature of (299 ± 13) °C represents the data taken between the Curie temperature and the onset region of diffusion broadening.