Fermi surface properties of CeSn3 and related compounds

Abstract The Fermi surface properties of the coherent and incoherent forms of the dense Kondo and mixed valence models for anomalous Ce compounds are examined. Experimental Fermi surface data for CeSn 3 and its isostructrural, non-4f analog LaSn 3 are presented and found to be consistent with either a coherent mixed valence or Kondo lattice interpretation. For CeSn 3 , one electron band calculations of the Fermi surface geometry are in good agreement with experiment, but the calculated effective masses are too low.