The theory describing the electron mass enhancement in Kondo-lattice heavy-fermion systems is presented. The description is based on the picture of a spin Fermi liquid of RVB type which strongly interacts with conduction electrons. It is shown that the electron-spinon scattering results in large phase shifts for conduction electrons near the Fermi level which mimic the resonance renormalization but does not involve f-electron states. The results are compared with dHvA data for several Ce-based compounds.
|Number of pages||17|
|Journal||Journal of Physics Condensed Matter|
|State||Published - 13 May 1996|
ASJC Scopus subject areas
- Materials Science (all)
- Condensed Matter Physics