THE TAMING OF PALLADIUM - THE INFLUENCE OF CERIUM ADDITIONS ON THE MAGNETIC AND TRANSPORT-PROPERTIES OF PALLADIUM IN THE COMPOSITION RANGE OF 5-PERCENT TO 16.7 AT-PERCENT CE

Low-temperature studies (resistivity, magnetic susceptibility and heat capacity) of the Pd-rich Ce-Pd alloys (5, 8 and 12.5 (CePd7) at.% Ce) reveal that, when Ce is added to Pd, the unusual magnetic behavior of Pd is destroyed and the Ce-Pd alloys behave more or less as common me tals. That is, the 4f electron of Ce is transferred to the 4d band of Pd and tends to fill it, leading to an unusually low, nearly temperatu re-independent paramagnetic susceptibility, chi=12.5x10(-6) e.m.u. (g at.)-1, and electronic specific heat constant, gamma=0.467 mJ (g at.)- 1 K-2 for CePd7. L-CePd5 (16.7 at.% Ce), on the other hand, appears to behave as an intermediate-valence compound which appears to be orderi ng below 2 K. It has a gamma value of 41.6 mJ (mole Ce)-1 K-2, which i s about 10% larger than that of CePd3.