A triangular [Mn3] cluster-based ferrimagnet with significant magnetic entropy change

Huan-Cheng Hu; Chun-Shuai Cao; Yang Yang; Peng Cheng; Bin Zhao

doi:10.1039/C4TC02958E

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A triangular [Mn₃] cluster-based ferrimagnet with significant magnetic entropy change†

Huan-Cheng Hu,^a Chun-Shuai Cao,^a Yang Yang,^a Peng Cheng*^a and Bin Zhao*^a

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* Corresponding authors

^a Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry, and Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, China
E-mail: zhaobin@nankai.edu.cn

Abstract

A novel triangular [Mn₃] cluster-based 3D ferrimagnet [Na₂Mn₃(SO₄)₃(μ₃-OH)₂(μ₂-OH₂)₂]_n (1) was structurally and magnetically characterized. It exhibited both long-range magnetic ordering (T_C = 12.0 K) and spin glass behaviour around 10 K and a butterfly-shaped magnetic hysteresis loop was observed. A peak (14.4 J kg⁻¹ K⁻¹) in the −ΔS_mvs. temperature curve was obtained at 13.5 K. It is rather rare that the magnetocaloric effect of a ferrimagnet was explored and that the peak in the −ΔS_mvs. temperature curve occurs above 10 K.

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Article information

DOI: https://doi.org/10.1039/C4TC02958E
Article type: Paper
Submitted: 26 Dec 2014
Accepted: 20 Feb 2015
First published: 20 Feb 2015

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J. Mater. Chem. C, 2015,3, 3494-3499

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A triangular [Mn₃] cluster-based ferrimagnet with significant magnetic entropy change

H. Hu, C. Cao, Y. Yang, P. Cheng and B. Zhao, J. Mater. Chem. C, 2015, 3, 3494 DOI: 10.1039/C4TC02958E

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Journal of Materials Chemistry C