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Effect of partial Nd-substitution on the magnetic and magnetocaloric properties in spin-reorientation PrCo4Al alloy

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  • Solid State and Materials
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Abstract

Partial Nd-substitution effects on the magnetic and magnetocaloric properties in spin-reorientation Pr1−x Nd x Co4Al (x = 0, 0.2, 0.4, 0.6, 0.8) alloys are investigated. All these alloys undergo two successive spin-reorientation transitions. Accordingly, the successive positive and negative magnetic entropy changes (Δ S M ) for all these alloys are obtained. With the increase of Nd content, the spin reorientation transition temperatures increase from about 170 and 186 K for x = 0 to room temperature (276 and 294 K) for x = 0.8, covering a wide temperature interval. More interestingly, the values of positive Δ S M values increase gradually from 0.1 to 0.9 J/kg K−1, while the negative Δ S M decrease from 1.3 to 0.2 J/kg K−1 in the field change of 10 kOe. In addition, the series has an appreciable relative cooling power, which is therefore suitable to be used in a magnetic refrigerator.

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Authors and Affiliations

  1. School of material science and engineering, Nanchang Hangkong University, Nanchang, 330063, P.R. China

    S. C. Ma & Z. C. Zhong

  2. National Laboratory of Solid State Microstructures and Key Laboratory of Nanomaterials for Jiang Su Province, Department of Physics, Nanjing University, Nanjing, 210093, P.R. China

    S. C. Ma, D. H. Wang, L. J. Shen, H. C. Xuan, Q. Q. Cao & Y. W. Du

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  1. S. C. Ma
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  2. D. H. Wang
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Ma, S.C., Wang, D.H., Zhong, Z.C. et al. Effect of partial Nd-substitution on the magnetic and magnetocaloric properties in spin-reorientation PrCo4Al alloy. Eur. Phys. J. B 84, 167–171 (2011). https://doi.org/10.1140/epjb/e2011-20121-3

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  • DOI: https://doi.org/10.1140/epjb/e2011-20121-3

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