Magnetic and superconducting phases of CePd2Si2

The cross-over from a magnetically ordered to a non-magnetic spin liquid state has been investigated in a series of resistance measurements under hydrostatic pressures of up to 30 kbar and at temperatures down to below 200 mK in the heavy fermion antiferromagnet CePd(2)Si(2). The electrical resistivity changes dramatically with increasing pressure;Near the critical pressure, at which the magnetic ordering temperature is extrapolated to zero, it exhibits a quasi-linear variation over two orders of magnitude in temperature. This non-Fermi liquid form of rho(T) extends down to the onset of a new superconducting transition below 430 mK.