Pressure induced Kondo coherence effect in Ce2Pd3Si5

Abstract Ce 2 Pd 3 Si 5 is a new Kondo lattice compound that shows antiferromagnetic ordering at 8.4 K. We have performed the resistances measurement of Ce 2 Pd 3 Si 5 under pressure up to 8 GPa in the interval 2.5–300 K. The hydrostatic pressure was generated by employing a cubic anvil cell. The quantum critical point (QCP) exists around 6 GPa for this system, but the superconductivity is not observed. However, the result reveals the Kondo temperature increases after vanishing the magnetic ordering at around QCP due to the Kondo coherence effect under pressure.