Issue 34, 2020

Large magnetocaloric effect in gadolinium borotungstate Gd3BWO9

Abstract

Herein, we report a potential solid-state magnetic cooling candidate gadolinium borotungstate Gd3BWO9 that shows an exceptionally large magnetocaloric effect. Experimental investigations on the crystal structure, bulk magnetic and heat capacity properties down to 300 mK were performed, along with the theoretical analysis of the electronic and magnetic features through density functional theory (DFT) and mean-field approach. The isothermal magnetic entropy change was identified to be 454 mJ K−1 cc−1 for a field variation of 9 T at 2.4 K, which are among the highest records ever reported. The substantial magnetocaloric effect makes Gd3BWO9 a strong alternative for cryogenic refrigeration at ultra-low temperatures and in the magnetic gas liquefaction.

Graphical abstract: Large magnetocaloric effect in gadolinium borotungstate Gd3BWO9

Supplementary files

Article information

Article type
Paper
Submitted
22 May 2020
Accepted
20 Jul 2020
First published
22 Jul 2020

J. Mater. Chem. C, 2020,8, 11866-11873

Large magnetocaloric effect in gadolinium borotungstate Gd3BWO9

Z. Yang, H. Zhang, M. Bai, W. Li, S. Huang, S. Ruan and Y. Zeng, J. Mater. Chem. C, 2020, 8, 11866 DOI: 10.1039/D0TC02449J

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