Several perovskite-like intermetallics CePd3Gax(0 less than or equal to x l
ess than or equal to 0.2) have been studied by means of magnetic and electr
ical transport measurements. With increasing x, the system transforms from
a coherent nonmagnetic Kondo lattice to a single-ion Kondo system and final
ly to a magnetic dense-Kondo system. The observed behaviour occurs due to a
change in the valence of cerium from intermediate-valent towards trivalent
state. (C) 1999 Elsevier Science B.V. All rights reserved.