Anisotropy in RFe2 Intermetallics: An NMR Study

The anisotropy of the Ho3+, Tb3+ and Tm3+ rare-earth ions in RFe2 compounds is investigated using the field dependence of the NMR spectra of 169Tm, 159Tb and 165Ho in polycrystalline TmFe2, TbFe2, HoFe2 and related pseudo-binary compounds. The very large hyperfine interaction in these ions dominates...

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Bibliographic Details
Main Author: C Carboni
Format: Article
Language:English
Published: Sultan Qaboos University 2009-06-01
Series:Sultan Qaboos University Journal for Science
Subjects:
Online Access:https://journals.squ.edu.om/index.php/squjs/article/view/361
Description
Summary:The anisotropy of the Ho3+, Tb3+ and Tm3+ rare-earth ions in RFe2 compounds is investigated using the field dependence of the NMR spectra of 169Tm, 159Tb and 165Ho in polycrystalline TmFe2, TbFe2, HoFe2 and related pseudo-binary compounds. The very large hyperfine interaction in these ions dominates the NMR spectrum; the NMR frequencies in the 2 to 7 GHz range provide therefore a measure of the localized  moment and its orientation in the crystal field. We compare the NMR measurements to single ion computations that include magnetostriction.   KEYWORDS:
ISSN:1027-524X
2414-536X