Phase diagrams and Fermi surface properties of CePb3

We illustrated the phase diagrams and measured the de Haas-van Alphen effec t of CePb3, which is a heavy fermion compound with an antiferromagnetic tra nsition at 1.1 K. CePb3 has three phases: antiferromagnetic. spin-flop, and paramagnetic. Three fundamental oscillations denoted by alpha, beta, and g amma were observed in the paramagnetic state. Two of them, the alpha and ga mma branches, are closed and almost spherical. For the alpha branch, the na tural explanation is provided by the results of band calculation. The heavi est cyclotron effective mass was 67m(0) in the alpha branch of CePb3 when t he magnetic field is applied parallel to [100]. The mass of CePb3 is in a r ange of 9.3 to 67m(0) and quite enhanced. Despite the natural explanation i n topology, as expected from the quite heavy cyclotron mass, the quasiparti cle bands are much flatter and the density of states at the Fermi energy is more enhanced than the calculated one.