Heavy-fermion quantum critical point behavior in CeNi9Ge 4

Author(s)
Herwig Michor, Ernst Bauer, Christian Dusek, Gerfried Hilscher, Peter Franz Rogl, Bernard Chevalier, Jean R. Etourneau, Gerald Giester, U Killer, Ernst Wilhelm Scheidt
Abstract

We report on non-Fermi liquid features observed for CeNi9Ge 4 - a novel stoichiometric compound, which is close to the heavy-fermion quantum critical point. The specific heat measured down to 80 mK reveals an almost logarithmic divergence of the low-temperature contribution yielding an extraordinarily large Sommerfeld value ? exceeding 6 J/mol K2. The application of external magnetic fields recovers a conventional Fermi-liquid state. Œ2003 Elsevier B.V. All rights reserved.

Organisation(s)
Department of Physical Chemistry, Department of Mineralogy and Crystallography
External organisation(s)
Technische Universität Wien, Université Bordeaux, Universität Augsburg
Pages
227-228
No. of pages
2
DOI
https://doi.org/10.1016/j.jmmm.2003.12.675
Publication date
2004
Austrian Fields of Science 2012
1051 Geology, Mineralogy
Portal url
https://ucrisportal.univie.ac.at/en/publications/51d633e7-f2e1-479e-8b21-5b0c12627fcb