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On the Atomic and Magnetic Structure of Er2Fe17

Published online by Cambridge University Press:  28 February 2011

R. Kumar  and
W. B. Yelon
R. Kumar
Affiliation:
University of Missouri-Columbia, Department of Physics and Research Reactor, Columbia, MO 65211.
W. B. Yelon
Affiliation:
University of Missouri-Columbia, Department of Physics and Research Reactor, Columbia, MO 65211.
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Abstract

We present the results of Rietveld analysis on the neutron diffraction intensities of Er2Fe17, which crystallizes in the hexagonal Th2Ni17 phase. Of the reflection sets, h-k ≠ 3n, l = 2n+1 and l = 2n, the former fit better than the latter and are in general more intense. This suggests disordered transition-metal-substitution on the planes parallel to the c-axis resulting in stacking faults; ABABs... is the usual sequence of ordered transition-metalsubstitutions in the parent CaCu5 phase. Influence of such deformations on the interatomic distances inthe substitution zone and the consequent magnetic bonding and anisotropy is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 138: Symposium Q – Characterization of the Structure and Chemistry of Defects in Materials , 1988 , 191
Copyright
Copyright © Materials Research Society 1989

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