中国物理B ›› 2023, Vol. 32 ›› Issue (6): 67501-067501.doi: 10.1088/1674-1056/acc060

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Crystal growth of CeMn0.85Sb2: Absence of magnetic order of Ce-sublattice

Yong Li(李勇)1,2,3, Shan-Shan Miao(苗杉杉)1, Hai Feng(冯海)1,4,†, Huai-Xin Yang(杨槐馨)1,3,‡, and You-Guo Shi(石友国)1,2,4,§   

  1. 1 Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    2 Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100190, China;
    3 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China;
    4 Songshan Lake Materials Laboratory, Dongguan 523808, China
  • 收稿日期:2023-01-07 修回日期:2023-03-01 接受日期:2023-03-02 出版日期:2023-05-17 发布日期:2023-06-05
  • 通讯作者: Hai Feng, Huai-Xin Yang, You-Guo Shi E-mail:hai.feng@iphy.ac.cn;hxyang@iphy.ac.cn;ygshi@iphy.ac.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. U22A6005, U2032204, and 12104492), the Guangdong Major Scientific Research Project (Grant No. 2018KZDXM061), the National Key Research and Development Program of China (Grant No. 2021YFA1400401), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB33010000), the K. C. Wong Education Foundation (Grant No. GJTD-2018-01), and the Informatization Plan of Chinese Academy of Sciences (Grant No. CAS-WX2021SF-0102).

Crystal growth of CeMn0.85Sb2: Absence of magnetic order of Ce-sublattice

Yong Li(李勇)1,2,3, Shan-Shan Miao(苗杉杉)1, Hai Feng(冯海)1,4,†, Huai-Xin Yang(杨槐馨)1,3,‡, and You-Guo Shi(石友国)1,2,4,§   

  1. 1 Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    2 Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100190, China;
    3 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China;
    4 Songshan Lake Materials Laboratory, Dongguan 523808, China
  • Received:2023-01-07 Revised:2023-03-01 Accepted:2023-03-02 Online:2023-05-17 Published:2023-06-05
  • Contact: Hai Feng, Huai-Xin Yang, You-Guo Shi E-mail:hai.feng@iphy.ac.cn;hxyang@iphy.ac.cn;ygshi@iphy.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. U22A6005, U2032204, and 12104492), the Guangdong Major Scientific Research Project (Grant No. 2018KZDXM061), the National Key Research and Development Program of China (Grant No. 2021YFA1400401), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB33010000), the K. C. Wong Education Foundation (Grant No. GJTD-2018-01), and the Informatization Plan of Chinese Academy of Sciences (Grant No. CAS-WX2021SF-0102).

摘要: Single crystals of CeMn$_{0.85}$Sb$_{2}$ have been successfully synthesized by using the Bi as flux. Analysis of single crystal x-ray diffraction data confirms that CeMn$_{0.85}$Sb$_{2}$ crystallizes in the HfCuSi$_{2}$-type structure with the space group $P4/nmm$ (No. 129). In the case of $H\parallel c$, CeMn$_{0.85}$Sb$_{2}$ displays a robust antiferromagnetic transition at $\sim 160 $ K for Mn-sublattice, and there is no sign of magnetic order regarding Ce-sublattice. In the case of $H\bot c$, the Mn-sublattice shows signs of magnetic order at 160 K and 116 K, indicating a possible spin reorientation. There is no sign of magnetic order for the Ce-sublattice either, but, alternating current magnetic susceptibility measurements reveal a spin glass state below 18 K in the case of $H\bot c$. Isothermal magnetization curves measured below magnetic order with $H\bot c$ show saturation and even large hysteresis at 2 K, indicating the presence of a ferromagnetic component. In addition, a field-induced spin-flop transition is observed in the case of $H\bot c$, indicating a field-induced spin reorientation of Mn spins. Electrical resistivity measurements indicate a metallic nature for CeMn$_{0.85}$Sb$_{2}$ and large anisotropy which is consistent with its quasi-two-dimensional layered structure.

关键词: CeMn0.85Sb2, magnetism, spin glass, layered structure, square lattice

Abstract: Single crystals of CeMn$_{0.85}$Sb$_{2}$ have been successfully synthesized by using the Bi as flux. Analysis of single crystal x-ray diffraction data confirms that CeMn$_{0.85}$Sb$_{2}$ crystallizes in the HfCuSi$_{2}$-type structure with the space group $P4/nmm$ (No. 129). In the case of $H\parallel c$, CeMn$_{0.85}$Sb$_{2}$ displays a robust antiferromagnetic transition at $\sim 160 $ K for Mn-sublattice, and there is no sign of magnetic order regarding Ce-sublattice. In the case of $H\bot c$, the Mn-sublattice shows signs of magnetic order at 160 K and 116 K, indicating a possible spin reorientation. There is no sign of magnetic order for the Ce-sublattice either, but, alternating current magnetic susceptibility measurements reveal a spin glass state below 18 K in the case of $H\bot c$. Isothermal magnetization curves measured below magnetic order with $H\bot c$ show saturation and even large hysteresis at 2 K, indicating the presence of a ferromagnetic component. In addition, a field-induced spin-flop transition is observed in the case of $H\bot c$, indicating a field-induced spin reorientation of Mn spins. Electrical resistivity measurements indicate a metallic nature for CeMn$_{0.85}$Sb$_{2}$ and large anisotropy which is consistent with its quasi-two-dimensional layered structure.

Key words: CeMn0.85Sb2, magnetism, spin glass, layered structure, square lattice

中图分类号:  (Spin-glass and other random models)

  • 75.10.Nr
75.30.Gw (Magnetic anisotropy) 71.20.Lp (Intermetallic compounds)