LOW-TEMPERATURE MAGNETIC AND THERMAL-PROPERTIES OF CEPD2IN IN MAGNETIC-FIELDS

A detailed study of the low-temperature magnetization M and specific h eat C of CePd2In is reported. For B approximate to 0, M and C show max ima at T-N approximate to 1.25 K indicating an antiferromagnetic phase transition as observed previously. In a magnetic field B the transiti on seen in M is shifted to lower T while T, as determined from the spe cific-heat maximum is essentially unaltered up to fields of 6 T. This different behavior is attributed to magnetic anistropy of the polycrys talline samples. The hyperfine contribution to C is discussed in terms of nuclear quadrupole splitting as well as Zeeman splitting by applie d and transferred hyperfine fields. A rough estimate of the Kondo temp erature from C sufficiently above T-N yields T-K approximate to 1.5 K.