Abstract
The temperature dependences of the electrical resistivity ( rho ), thermopower (S), thermal conductivity (K) and temperature derivatives d rho /dT and dS/dT have been measured in single crystals of PrCd, with the electric field and temperature gradient applied along the (110) direction. Three phase transitions have been identified: a structural transition at Ts=125K, where the high-temperature CsCl structure ceases to exist, an antiferromagnetic-paramagnetic transition at TN=40K and an unknown phase transition at T*=20K. Particular attention is focused on the details of the structural transition at Ts, namely on the peculiar irreversible behaviour observed there. An analysis is presented to identify and estimate different contributions to the transport coefficients of PrCd. A brief comment is also made on the problem of the lattice stability in CsCl structure intermetallic compounds.
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