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Magnetic properties of Yb2Ni17 from 170Yb Mössbauer spectroscopy and magnetisation measurements

Authors :
G. Jéhanno
P. Imbert
J. Hammann
Pierre Bonville
J.A. Hodges
Source :
Journal of Magnetism and Magnetic Materials. 151:115-122
Publication Year :
1995
Publisher :
Elsevier BV, 1995.

Abstract

From 170Yb3+ Mossbauer measurements on Yb2Ni17 down to 0.05 K we have obtained the saturated 4f shell magnetic and quadrupole moments at the two Yb3+ sites. The combined influence of the Yb3+ crystal field and the Ni derived exchange interactions leaves an essentially pure fully stretched | J z = 7 2 〉 state at one site and a mixed state with a 40% reduction of the magnetic moment at the other site. The fully stretched state experiences a saturated molecular field of near 0.5 T. From the magnetisation measurements we obtain the magnetic ordering temperature of the Ni sublattice (145 K) and find that, in contrast to the other R2Ni17, the Yb3+ and Ni sublattice moments do not show a compensation temperature.

Details

ISSN :
03048853
Volume :
151
Database :
OpenAIRE
Journal :
Journal of Magnetism and Magnetic Materials
Accession number :
edsair.doi...........115f385f184bef62438fc490b9b47ed3
Full Text :
https://doi.org/10.1016/0304-8853(95)00395-9