Single-ion-type Kondo resistivity and thermoelectric power in USb antiferromagnet

Resistivity, magnetoresistivity, magnetisation, and thermoelectric power of several USb crystals, grown with resistivity ratio RR = rho(300 K)/rho(4.2 K) ranging from 1.6 to 13, have been examined in the temperature range 30 mK-300 K and in magnetic fields up to 14 T. Minimum of the resistivity betw een 8 and 14 K and maximum of the thermoelectric power at ca. 40 K, both de pendent on the RR value, have been observed. Similarity of the observed beh aviour to that specific for paramagnetic Kondo impurity system is pointed o ut. (C) 2000 Elsevier Science B.V. All rights reserved.