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Mössbauer Study of a Stressed Single Crystal of KFeF3

✍ Scribed by F. Varret; P. Imbert

Publisher
John Wiley and Sons
Year
1973
Tongue
English
Weight
432 KB
Volume
56
Category
Article
ISSN
0370-1972

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✦ Synopsis

Abstract

A single crystal 〈111〉 platelet of the cubic perovskite KFeF~3~ has been submitted to a stress parallel to its plane. By this means, a single magnetic domain may be obtained in the magnetic region having a trigonal symmetry. By measuring the relative intensities of the Mossbauer lines, the orientation of the hyperfine field and of the electric field gradient tensor with respect to the plane of the platelet have been determined throughout the temperature range 4.2 ≦ T ≦ 110°K.

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✍ Laurence P. Aldridge; James Finch; Graeme J. Gainsford; Kevin H. Patterson; W. C 📂 Article 📅 1991 🏛 Springer-Verlag 🌐 English ⚖ 798 KB

Electric field gradient (EFG) measurements for Fe z + in the cisand trans-sites of a large single crystal of trioctahedral biotite of the 1M polytype are described. Attempts to apply thickness and polarisation corrections are outlined. The measured EFG's are distinctly rhombic: t1=0.28 and 0.42 resp