Abstract
Mösbauer experiments have been performed on natural and synthetic samples of 4 C monoclinic pyrrhotite Fe 7S 8 down to helium temperature. The spectra at 4.2 K are found to be quite different of those obtained at 77 or 300 K and this change is related to the low temperature transition occuring at T t ∾ 30–35 K . Apart from the contributions of residual impurities, five Fe 2+ sites, with their six absorption lines, are needed to give a good fit of the helium temperature spectra, while the Bertaut model, with only four sites, can account for the high temperature data.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
