Pressure effect on transport properties and specific heat of Kondo compound Ce3Pd20Si6

We present the Hall constant, electrical resistivity, and low-temperature s pecific heat of the Kondo compound Ce3Pd2OSi6 under high pressures. The tem perature dependence of the Hall constant and the electrical resistivity sho ws very large pressure effects which are characteristic of Kondo compounds. On the other hand, the low-temperature specific heat shows little pressure effect. This contrasting result is discussed, taking into account two crys tallographic Ce sites with much different Kondo temperatures.