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Are heavy-fermion metals Fermi liquids?
- Source :
- Zeitschrift für Physik B Condensed Matter. 103:235-242
- Publication Year :
- 1996
- Publisher :
- Springer Science and Business Media LLC, 1996.
-
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 normalstate 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.
Details
- ISSN :
- 1431584X and 07223277
- Volume :
- 103
- Database :
- OpenAIRE
- Journal :
- Zeitschrift für Physik B Condensed Matter
- Accession number :
- edsair.doi.dedup.....c3838502683e8e3c362a61dd27ef95d0