Abstract
Specific heat, low- and high-field magnetic susceptibility, thermal expansion, and magnetostriction measurements have been made on single crystals of CeBi and CeSb in order to investigate the low-temperature magnetic phase transitions of these compounds. We have observed structural transitions at the respective Neel temperatures. The maximum tetragonal distortions below TN are of the order of 10−3 in both cases. Specific heat results confirm the unusually small overall splitting of the ground-state multiplet. Applications of external magnetic fields induce a variety of interesting effects and provide insight into the magnetic phase diagram of these substances. The results are discussed qualitatively.
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