中国物理B ›› 2026, Vol. 35 ›› Issue (4): 48103-048103.doi: 10.1088/1674-1056/ae0399

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High-pressure synthesis and sequential ferrimagnetic ordering and spin glass transition of an Fe/Ru disordered quadruple perovskite CeCu3Fe2Ru2O12

Sumei Li(李素梅)1,2, Gaochao Zhao(赵高超)1,2, Meng Wang(王萌)1,2, Lihua Yin(尹利华)1, Peng Tong(童鹏)1, Xuebin Zhu(朱雪斌)1, Jie Yang(杨杰)1,†, and Yuping Sun(孙玉平)1,3,4   

  1. 1 Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China;
    2 University of Science and Technology of China, Hefei 230026, China;
    3 High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China;
    4 Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
  • 收稿日期:2025-07-07 修回日期:2025-08-21 接受日期:2025-09-05 发布日期:2026-04-01
  • 通讯作者: Jie Yang E-mail:jyang@issp.ac.cn
  • 基金资助:
    Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0403502) and the Joint Funds of the National Natural Science Foundation of China and the Chinese Academy of Sciences’ Large-Scale Scientific Facility (Grant No. U1832115).

High-pressure synthesis and sequential ferrimagnetic ordering and spin glass transition of an Fe/Ru disordered quadruple perovskite CeCu3Fe2Ru2O12

Sumei Li(李素梅)1,2, Gaochao Zhao(赵高超)1,2, Meng Wang(王萌)1,2, Lihua Yin(尹利华)1, Peng Tong(童鹏)1, Xuebin Zhu(朱雪斌)1, Jie Yang(杨杰)1,†, and Yuping Sun(孙玉平)1,3,4   

  1. 1 Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China;
    2 University of Science and Technology of China, Hefei 230026, China;
    3 High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China;
    4 Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
  • Received:2025-07-07 Revised:2025-08-21 Accepted:2025-09-05 Published:2026-04-01
  • Contact: Jie Yang E-mail:jyang@issp.ac.cn
  • Supported by:
    Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0403502) and the Joint Funds of the National Natural Science Foundation of China and the Chinese Academy of Sciences’ Large-Scale Scientific Facility (Grant No. U1832115).

摘要: We successfully prepared an $A$-site-ordered quadruple perovskite oxide CeCu$_{3}$Fe$_{2}$Ru$_{2}$O$_{12}$ by using a high-pressure method (10 GPa, 1400 K). The compound crystallizes in the Im$\bar{3}$ space group, with $A$-site ordering of Ce and Cu ions in a ratio of 1:3, but $B$-site disordered distribution of Fe and Ru ions. Bond-value-sum calculations and x-ray photoelectron spectroscopy measurement manifest that the charge distribution is Ce$^{3.5+}$Cu$^{2+}_{3}$Fe$^{3+}_{2}$Ru$^{4.25+}_{2}$O$_{12}$. A ferrimagnetic phase transition occurs at $T_{\rm C} = 73.6 $ K followed by a spin glass behavior at 50.3 K consistent with the conventional dynamical scaling power law. Electrical transport measurement shows that the intrinsic electrical behavior is semiconducting and the resistivity obey the adiabatic small-polaron model. The specific heat follows a $T^2$ law instead of traditional phonon-dominated $T^{3}$ behavior implying a finite energy gap in the excitation spectrum.

关键词: $A$-site ordered perovskite, high pressure synthesis, magnetic properties

Abstract: We successfully prepared an $A$-site-ordered quadruple perovskite oxide CeCu$_{3}$Fe$_{2}$Ru$_{2}$O$_{12}$ by using a high-pressure method (10 GPa, 1400 K). The compound crystallizes in the Im$\bar{3}$ space group, with $A$-site ordering of Ce and Cu ions in a ratio of 1:3, but $B$-site disordered distribution of Fe and Ru ions. Bond-value-sum calculations and x-ray photoelectron spectroscopy measurement manifest that the charge distribution is Ce$^{3.5+}$Cu$^{2+}_{3}$Fe$^{3+}_{2}$Ru$^{4.25+}_{2}$O$_{12}$. A ferrimagnetic phase transition occurs at $T_{\rm C} = 73.6 $ K followed by a spin glass behavior at 50.3 K consistent with the conventional dynamical scaling power law. Electrical transport measurement shows that the intrinsic electrical behavior is semiconducting and the resistivity obey the adiabatic small-polaron model. The specific heat follows a $T^2$ law instead of traditional phonon-dominated $T^{3}$ behavior implying a finite energy gap in the excitation spectrum.

Key words: $A$-site ordered perovskite, high pressure synthesis, magnetic properties

中图分类号:  (Pressure treatment)

  • 81.40.Vw
75.30.-m (Intrinsic properties of magnetically ordered materials) 75.47.Lx (Magnetic oxides)