155Gd Mössbauer effect study of Gd2Fe17Nx

M. W. Dirken, R. C. Thiel, R. Coehoorn, T. H. Jacobs, K. H.J. Buschow

Research output: Contribution to journalComment/Letter to the editorAcademicpeer-review

53 Citations (Scopus)

Abstract

We have prepared the ternary nitride Gd2Fe17Nx (with x close to 3) and have studied this compound by means of X-ray diffraction and 155Gd Mössbauer spectroscopy. Our results show that X-ray diffraction is not always a sufficient means to test whether the charging process with N2 gas has reached completion. From the analysis of the 155Gd Mössbauer spectrum of Gd2Fe17Nx it is derived that the electric field gradient at the Gd nuclei is 12.6(2)×1021 V/m2. This value is substantially larger than that found at the Gd sites in Gd2Fe14B. Its implication on the crystal field induced anisotropy in R2Fe17Nx compounds is discussed.

Original languageEnglish
Pages (from-to)L15-L19
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Volume94
Issue number1-2
DOIs
Publication statusPublished - 1 Mar 1991
Externally publishedYes

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