Mössbauer Study of Relaxation Phenomena in (NH4)3FeF6

Steen Mørup, N. Thrane

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Abstract

The shape of a relaxation-broadened Mössbauer absorption line for a paramagnetic ferric compound is influenced by various terms of the ionic Hamiltonian. Here we discuss especially how the application of an external magnetic field may influence the line shape and may give information about the magnitudes of other terms of the ionic Hamiltonian. Measurements on the two phases of (NH4)3FeF6 demonstrate differences between cubic and noncubic surroundings of the ferric ion. In the cubic phase we have found a temperature-independent spin-correlation time τ≃1.19×10-10 sec.
Original languageEnglish
JournalPhysical Review B
Volume8
Issue number3
Pages (from-to)1020-1025
ISSN2469-9950
DOIs
Publication statusPublished - 1973

Bibliographical note

Copyright (1973) by the American Physical Society.

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