Grüneisen parameter of cerium compounds with unstable 4 f shells

摘要: We give experimental results of magnetic susceptibility, thermal expansion and elastic constant measurements for CeSn3 CePd3. interpret these with a phenomenological scaling function the free energy we include brief discussion CeAl3. The coupling between electronic system lattice can be described by an Gruneisen parameter Ωg associated unstable 4f which turns out to become specific far below fluctuation temperatureT0. T0Ωg is order magnitude larger than stable valentRE systems extracted from crystal field effects. A generalization dependent effects also given.