Investigation of SmFe4P12at Pressures to 8 GPa

Electrical resistivity measurements of a ferromagnetic Kondo compound SmFe 4 P 12 have been carried out under pressures up to ∼8 GPa and at temperatures down to ∼0.3 K. With increasing pressure, shoulder-like behavior in electrical resistivity below 100 K attributed to the Kondo coherent scattering was strongly suppressed and was shifted to higher temperature region, which was often observed in Ce-based Kondo lattice compounds under applied pressure. Meanwhile, anomalous drops in resistivity ascribed to the ferromagnetic ordering have been observed at all investigated pressures up to 7.8 GPa and the values of transition temperature were hardly changed under applied pressures up to 7.8 GPa.