High-pressure synthesis of A-site ordered perovskite PbMn3(CrMn3)O12 with long-range antiferromagnetic ordering and a spin glass transition

Man Xue; Xiaohui Yan; Deyang Xu; Bin Zheng; Wenbin Guo; Xiaojun Kuang; Xiuyun Lei; Congling Yin

doi:10.1039/D4DT01357C

High-pressure synthesis of A-site ordered perovskite PbMn₃(CrMn₃)O₁₂ with long-range antiferromagnetic ordering and a spin glass transition†

Man Xue,^a Xiaohui Yan,^a Deyang Xu,^a Bin Zheng,^a Wenbin Guo,*^a Xiaojun Kuang,

^ab Xiuyun Lei*^a and Congling Yin

*^a

Author affiliations

* Corresponding authors

^a MOE Key Laboratory of New Processing Technology for Nonferrous Metal and Materials, Guangxi Key Laboratory of Optical and Electronic Materials and Devices, Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, P. R. China
E-mail: guo0281@163.com, xiuyun.lei@glut.edu.cn, congling.yin@glut.edu.cn

^b Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China

Abstract

An AA′₃B₄O₁₂-type perovskite oxide PbMn₃(CrMn₃)O₁₂ was synthesized by high-pressure solid-state reactions at 8 GPa and 1373 K. Synchrotron X-ray diffraction shows a cubic crystal structure with the space group Im [3 with combining macron] . The charge states are verified by X-ray photoelectron spectroscopy to be PbMn³⁺₃(Cr³⁺Mn³⁺₂Mn⁴⁺)O₁₂, where the Pb²⁺ and Mn³⁺ are 1 : 3 ordered respectively at A and A′ sites, while the Cr³⁺, Mn³⁺ and Mn⁴⁺ are disorderly distributed at the B site. PbMn₃(CrMn₃)O₁₂ features a long-range antiferromagnetic order of A′-site Mn³⁺ spins at about 66 K and a subsequent spin glass transition around 36 K due to the randomly distributed Cr³⁺, Mn³⁺, and Mn⁴⁺ cations at the B site. This unique stepwise order of A′ and B-site spins indicates weak A′–B site spin interactions, which are dominated by the difference in the B-site Mn³⁺/Ni²⁺ and Mn⁴⁺ number in the quadruple perovskites AMn₃B₄O₁₂.

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Article information

DOI: https://doi.org/10.1039/D4DT01357C
Article type: Paper
Submitted: 08 May 2024
Accepted: 13 May 2024
First published: 15 May 2024

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Dalton Trans., 2024, Advance Article

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High-pressure synthesis of A-site ordered perovskite PbMn₃(CrMn₃)O₁₂ with long-range antiferromagnetic ordering and a spin glass transition

M. Xue, X. Yan, D. Xu, B. Zheng, W. Guo, X. Kuang, X. Lei and C. Yin, Dalton Trans., 2024, Advance Article , DOI: 10.1039/D4DT01357C

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