Crystal-field effects in the two-dimensional antiferromagnets K2FeF4 and K3Fe2F7
Publication date
1980
Authors
Thurlings, M.P.H.
Diepen, A.M. van
Wijn, H.W. de
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DOI
Document Type
Article
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Abstract
Mössbauer spectroscopy between 4.2 and 300 K combined with crystal-field calculations on Fe2+ have yielded information on the tetragonal crystal field and the spin-orbit coupling in the related structures K2FeF4 and K3Fe2F7. Below TN the electric-field gradient is asymmetric due to noncollinearity of the tetragonal and magnetic axes.