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Summary: Non-Fermi-liquid behavior in Ce,,Ru1-xFex...2Ge2: Cause and effect
W. Montfrooij,1 M. C. Aronson,2 B. D. Rainford,3 J. A. Mydosh,4,5 R. Hendrikx,4 T. Gortenmulder,4,6 A. P. Murani,7
P. Haen,8
I. Swainson,9
and A. de Visser6
1Department of Physics and Missouri Research Reactor, University of Missouri, Columbia, Missouri 65211, USA
2
University of Michigan, Ann Arbor, Michigan 48109, USA
3University of Southampton, Southampton SO17 1BJ, United Kingdom
4Leiden University, 2300 RA Leiden, the Netherlands
5University of Cologne, 50937 Koeln, Germany
6
Van der Waals-Zeeman Institute, University of Amsterdam, 1018 XE Amsterdam, the Netherlands
7Institute Laue-Langevin, BP 156, 38042 Genoble cedex 9, France
8
CRTBT, CNRS, BP 166, 38042 Grenoble cedex 9, France
9Steacie Institute for Molecular Sciences, NRC, Chalk River, Canada KOJ 1J0
Received 30 December 2005; revised manuscript received 24 February 2006; published 4 April 2006
We present inelastic neutron scattering measurements on the intermetallic compounds Ce Ru1-xFex 2Ge2
x=0.65, 0.76, and 0.87 . These compounds represent samples in a magnetically ordered phase, at a quantum
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