Abstract
Electrical resistivity ρ(T), specific heat C p(T), magnetic susceptibility χ(T), and magnetization M(H) have been measured for polycrystalline PrNi 2 B 2 C. Maxima in C p(T) and |dχ(T)/dT| dependencies were found at T N ≈ 4.3 K connected with AFM ordering observed earlier by neutron diffraction. The Sommerfeld coefficient is at least 250 mJ/mol K 2 . The values of T N for PrNi 2 B 2 C and |dT c /dx| for Y 1−x Pr x Ni 2 B 2 C were found to be much larger than estimated by the de Gennes scaling from the Gd-based borocar-bides. These facts as well as anomalous decrease of ρ(T) found below 20K are connected with moderate heavy fermion behaviour of antiferromagnetic PrNi 2 B 2 C.
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Narozhnyi, V., Freudenberger, J., Fuchs, G. et al. Anomalous Behaviour of PrNi2B2C Borocarbide. Journal of Low Temperature Physics 117, 1599–1603 (1999). https://doi.org/10.1023/A:1022507631148
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DOI: https://doi.org/10.1023/A:1022507631148