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

研究成果: Article査読

19 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)235-242
ページ数8
ジャーナルZeitschrift fur Physik B-Condensed Matter
103
2
DOI
出版ステータスPublished - 1996 6
外部発表はい

ASJC Scopus subject areas

  • Condensed Matter Physics

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