Magnetic instabilities in Er1-xYxCo3 studied by NMR

The field dependence of 59Co NMR in ferrimagnetic Er1-xYxCo3 was measured up to 8T at 4.2K. For pure ErCo3 in fields perpendicular to the c axis the resonance frequencies change discontinuously between 2 and 3T due to a field induced metamagnetic transition. The transition is characterized by rotati...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2006-05, Vol.378-380, p.1087-1088
Main Authors: Niki, H, Fukumura, T, Kinjou, H, Kinjou, T, Pieper, M W, Gratz, E, Paul-Boncour, V, Markosyan, A S
Format: Article
Language:English
Online Access:Get full text
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Summary:The field dependence of 59Co NMR in ferrimagnetic Er1-xYxCo3 was measured up to 8T at 4.2K. For pure ErCo3 in fields perpendicular to the c axis the resonance frequencies change discontinuously between 2 and 3T due to a field induced metamagnetic transition. The transition is characterized by rotations of Er and Co magnetic moments away from the easy c-axis. The angles between the Co moments and the c axis at x=0.1 are obtained. The easy axis is found to be along the c axis for x=0 and 0.1, and inclined from the c axis for x=0.3 and 0.5.
ISSN:0921-4526
DOI:10.1016/j.physb.2006.01.432