Thermoelectric power of CeTGe (T: Ni, Pd and Pt)

The electrical resistivity ρ and the thermoelectric power S of the three compounds CeTGe (T; Ni, Pd and Pt) have been measured as a function of the temperature T down to around 0.1 K by the use of a ³He-⁴He dilution refrigerator. The single and positive peak of S(T) for the intermediate valence compound was found for CeNiGe, while a second positive peak of S(T) was found for CePdGe and CePtGe around 2 K in addition to the positive peak and the negative peak of S(T) hitherto reported at higher temperatures. The second peak is considered to be genuine for the Kondo antiferromagnet, and the origin is discussed.