Thermal and magnetic properties of Ce1−xLaxRhSn near the critical concentration

The main aim of this work is to investigate the electronic structure, specific heat and magnetic properties of Ce1−xLaxRhSn compounds near the critical concentration . Near x0 the magnetic properties for x>x0 correspond to spin fluctuations, while for the Ce-rich samples (xmictomagnetic-like behaviour indicates the formation of magnetic clusters. Both the magnetic susceptibility and electrical resistivity data obtained for the Ce0.55La0.45RhSn, Ce0.5La0.5RhSn and Ce0.45La0.55RhSn compounds obey a non-Fermi liquid temperature dependences due to an atomic disorder and/or the presence of spin fluctuations.