Abstract
The structure, magnetic and magnetocaloric effect of Pr1−xDyxNi2 (x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) compounds have been systematically studied. According to X-ray diffraction data, all samples exhibit MgCu2 laves cubic structure. Despite the addition of Dy element, Pr1−xDyxNi2 series compounds remains second-order magnetic phase transition throughout, but both the maximum magnetic entropy change (ΔSM) and the width at half-maximum of the ΔSM peak (δTFWHM) increase and reach 19.4 J/(kg·K) and 30 K (x = 0.8), respectively, resulting in an increase in the relative cooling power (RCP). Pr1−xDyxNi2 compounds show the potential application of magnetic refrigeration materials.
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The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.
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Acknowledgements
This work is supported by the Guangxi Natural Science Foundation (2019GXNSFAA245056, 2021GXNSFDA075009), the Innovation Project of Guangxi Graduate Education (YCSW2021190), the Guangxi Key Laboratory of Information Materials (201005-Z, 201014-Z, 211012-K), Guangxi One Thousand Young and Middle-Aged College and University Backbone Teachers Cultivation Program, and the Program for Bagui Scholars of Guangxi.
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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by WC, PD, ZL, and WZ. The first draft of the manuscript was written by WC and the manuscript was revised by LM and GR. All authors read and approved the final manuscript.
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Chen, W., Ma, L., He, M. et al. High magnetic entropy change of Pr1−xDyxNi2 compounds with second-order magnetic phase transition. J Mater Sci: Mater Electron 33, 6555–6562 (2022). https://doi.org/10.1007/s10854-022-07830-9
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DOI: https://doi.org/10.1007/s10854-022-07830-9