User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse




Journal Article

Phenomenology of Heavy Fermion Systems

There are no MPG-Authors available
There are no locators available
Fulltext (public)
There are no public fulltexts available
Supplementary Material (public)
There is no public supplementary material available

Steglich, F., Bredl, C. D., de Boer, F. R., Lang, M., Rauchschwalben, U., Rietschel, H., et al. (1987). Phenomenology of Heavy Fermion Systems. Physica Scripta, T19A, 253-259. doi:10.1088/0031-8949/1987/T19A/035.

Cite as: http://hdl.handle.net/11858/00-001M-0000-0019-CF6F-5
Local heavy fermions are formed at the sites of independent Kondo ions as substantiated by the discovery of a pronounced low temperature anomaly in the thermal expansion of certain dilute and moderately concentrated Ce alloys. In periodic Kondo lattice systems like CeAl3 a coherent heavy fermion band structure is developed at low T, one hallmark of which is a maximum in the Sommerfeld coefficient γ(T) near 0.4 K. This distinct phenomenon can even show up in the presence of long-range magnetic order as in CeCu2Ge2 and is found to have a strong influence on the superconducting properties of CeCu2Si2. According to its normal-state behavior, UBe13 appears to be closely related to the Ce-based Kondo lattices. A number of the superconducting properties of pure and Th-doped UBe13 can be well understood in terms of an anisotropic pairing interaction, which seems to track the anisotropy of the Fermi surface. This leads to a reinterpretation of the phase diagram of the superconducting states in U1-xThxBe13.