Magnetism and Magnetocaloric Efffects of R3Pd4 (R = Nd and Pr) Compounds


The magnetic properties and magnetocaloric effects of the intermetallic compounds R3Pd4 (R = Nd and Pr) were investigated. The results show that the ground state of the Nd3Pd4 compound is weakly antiferromagnetic below the Néel temperature TN of 9.4 K, which can be induced to be ferromagnetic state with a small applied field. For the Pr3Pd4 compound, it does not show any magnetic order-disorder transition down to 5 K. In the paramagnetic region, the reciprocal magnetic susceptibilities χ−1 for both compounds obey the Curie-Weiss law. The values of the effective magnetic moment for R3Pd4 (R = Nd and Pr) are determined to be 3.83 μB/Nd3+ and 3.51 μB/Pr3+, respectively, and the corresponding paramagnetic Curie temperatures were determined to be 6.5 K and − 17 K. For a magnetic field change of 0–5 T, the maximum magnetic entropy changes (-ΔSM) for Nd3Pd4 and Pr3Pd4 are found to be 7.8 J/kg K and 6.9 J/kg K, respectively. The corresponding value of refrigerant capacity (RC) for the Nd3Pd4 compound is estimated to be 74 J/kg.

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This work obtained financial support from the National Basic Research Program of China (Grant No. 2014CB643703), the National Natural Science Foundation of China (Grant No. 51801106), and Guangxi Natural Science Foundation, China (Grant No. 2018GXNSFAA294051, AD19110065). The authors also would like to thank K.C. Wong Magna Fund in Ningbo University.

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Correspondence to Y. J. Wang or Y. S. Du.

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Yang, Z.X., Wang, Y.J., Wu, X.F. et al. Magnetism and Magnetocaloric Efffects of R3Pd4 (R = Nd and Pr) Compounds. J Supercond Nov Magn 33, 1851–1857 (2020).

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  • R3Pd4 (R = Nd and Pr) compounds
  • Metamagnetic transition
  • Magnetocaloric effect