Molecule-like cluster magnetism and cationic order in the new hexagonal perovskite Ba4Sn1.1Mn2.9O12

Junkun Wu; Xiaohui Yan; Wenbin Guo; Xiaoming Wang; Congling Yin; Xiaojun Kuang

doi:10.1039/D1RA07841K

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Molecule-like cluster magnetism and cationic order in the new hexagonal perovskite Ba₄Sn_1.1Mn_2.9O₁₂†

Junkun Wu,^a Xiaohui Yan,^a Wenbin Guo,^a Xiaoming Wang,^b Congling Yin

*^a and Xiaojun Kuang

*^ac

Author affiliations

* Corresponding authors

^a MOE Key Laboratory of New Processing Technology for Nonferrous Metal and Materials, Guangxi Key Laboratory of Optic and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, P. R. China
E-mail: congling.yin@glut.edu.cn

^b Key Lab Macromolecular Science of Shaanxi Province, College of Chemistry and Chemical Engineering, Shaanxi Normal University, Xian 710062, P. R. China

^c College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China

Abstract

The new hexagonal perovskite phase of composition Ba₄Sn_1.1Mn_2.9O₁₂ has been synthesized by solid-state reactions at 1673 K. The crystal structure has been investigated using X-ray and neutron diffraction. The hexagonal perovskite structure has an ordered arrangement of Sn and Mn ions on the corner-sharing octahedral centers and the face-sharing octahedral centers respectively. Short Mn–Mn distances have been evidenced in the face-sharing trimer of MnO₆ octahedra. The magnetic susceptibility shows magnetic cluster behavior, with cluster formation temperature ∼220 K. Antiferromagnetic order has been observed at T_N ∼ 6 K. Ba₄Sn_1.1Mn_2.9O₁₂ is a semiconductor with a transport activation energy of 0.61 eV.

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Supplementary files

Crystal structure data CIF (5K)

Article information

DOI: https://doi.org/10.1039/D1RA07841K
Article type: Paper
Submitted: 23 Oct 2021
Accepted: 08 Dec 2021
First published: 17 Dec 2021
This article is Open Access

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RSC Adv., 2021,11, 40235-40242

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Molecule-like cluster magnetism and cationic order in the new hexagonal perovskite Ba₄Sn_1.1Mn_2.9O₁₂

J. Wu, X. Yan, W. Guo, X. Wang, C. Yin and X. Kuang, RSC Adv., 2021, 11, 40235 DOI: 10.1039/D1RA07841K

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