Are heavy-fermion metals Fermi liquids?

F. Steglich, P. Gegenwart, R. Helfrich, C. Langhammer, P. Hellmann, L. Donnevert, C. Geibel, M. Lang, G. Sparn, W. Assmus, G. R. Stewart, A. Ochiai

Research output: Contribution to journal › Article

16 Citations (Scopus)

Abstract

We present the results of specific-heat and resistivity measurements as a function of temperature, magnetic field and hydrostatic pressure on the Kondo lattice CeNi2Ge2, the heavy-fermion superconductors CeCu2Si2 and UBe13 as well as the low-carrier-density system Yb4As3. "Non-Fermi-liquid" effects in the low-temperature normal-state properties of the three former systems are consistent with the existence of a "nearby" quantum critical point, presumably of antiferromagnetic type. Yb4As3, though showing the outward appearance of a Landau-type heavy-fermion metal, behaves very differently, i.e. as an extreme two-fluid system.

Original languageEnglish
Pages (from-to)235-242
Number of pages8
JournalZeitschrift fur Physik B-Condensed Matter
Volume103
Issue number2
DOIs
Publication statusPublished - 1996 Jun

ASJC Scopus subject areas

  • Condensed Matter Physics

Access to Document

Fingerprint Dive into the research topics of 'Are heavy-fermion metals Fermi liquids?'. Together they form a unique fingerprint.

    • Cite this

    Steglich, F., Gegenwart, P., Helfrich, R., Langhammer, C., Hellmann, P., Donnevert, L., Geibel, C., Lang, M., Sparn, G., Assmus, W., Stewart, G. R., & Ochiai, A. (1996). Are heavy-fermion metals Fermi liquids? Zeitschrift fur Physik B-Condensed Matter, 103(2), 235-242. https://doi.org/10.1007/s002570050366