中国物理B ›› 2017, Vol. 26 ›› Issue (6): 67102-067102.doi: 10.1088/1674-1056/26/6/067102

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Anisotropic and mutable magnetization in Kondo lattice CeSb2

Yun Zhang(张云), Xiegang Zhu(朱燮刚), Bingfeng Hu(胡丙锋), Shiyong Tan(谭世勇), Donghua Xie(谢东华), Wei Feng(冯卫), Qin Liu(刘琴), Wen Zhang(张文), Yu Liu(刘瑜), Haifeng Song(宋海峰), Lizhu Luo(罗丽珠), Zhengjun Zhang(张政军), Xinchun Lai(赖新春)   

  1. 1 Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621907, China;
    2 Department of Engineering Physics, Tsinghua University, Beijing 100084, China;
    3 Key Laboratory of Neutron Physics, Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621999, China;
    4 Key Laboratory of Advanced Materials(MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China;
    5 Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
    6 Software Center for High Performance Numerical Simulation, China Academy of Engineering Physics, Beijing 100088, China
  • 收稿日期:2017-02-07 修回日期:2017-03-08 出版日期:2017-06-05 发布日期:2017-06-05
  • 通讯作者: Xinchun Lai E-mail:Laixinchun@caep.cn
  • 基金资助:
    Project supported by the Science Challenge Project (Grant No. TZ2016004), the Dean Foundation of China Academy of Engineering Physics (Grant No. 201501040), and the National Basic Research Program of China (Grant No. 2015CB921303).

Anisotropic and mutable magnetization in Kondo lattice CeSb2

Yun Zhang(张云)1,2, Xiegang Zhu(朱燮刚)1, Bingfeng Hu(胡丙锋)3, Shiyong Tan(谭世勇)1, Donghua Xie(谢东华)1, Wei Feng(冯卫)1, Qin Liu(刘琴)1, Wen Zhang(张文)1, Yu Liu(刘瑜)5,6, Haifeng Song(宋海峰)5,6, Lizhu Luo(罗丽珠)1, Zhengjun Zhang(张政军)4, Xinchun Lai(赖新春)1   

  1. 1 Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621907, China;
    2 Department of Engineering Physics, Tsinghua University, Beijing 100084, China;
    3 Key Laboratory of Neutron Physics, Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621999, China;
    4 Key Laboratory of Advanced Materials(MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China;
    5 Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
    6 Software Center for High Performance Numerical Simulation, China Academy of Engineering Physics, Beijing 100088, China
  • Received:2017-02-07 Revised:2017-03-08 Online:2017-06-05 Published:2017-06-05
  • Contact: Xinchun Lai E-mail:Laixinchun@caep.cn
  • Supported by:
    Project supported by the Science Challenge Project (Grant No. TZ2016004), the Dean Foundation of China Academy of Engineering Physics (Grant No. 201501040), and the National Basic Research Program of China (Grant No. 2015CB921303).

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摘要： We have systematically studied the behaviors of the resistivity and magnetization of CeSb2 single crystals as a function of temperature and external field. Four anomalies in the resistivity/magnetization-versus-temperature curves are observed at low magnetic field. They are located at 15.5 K, 11.5 K, 9.5 K, and 6.5 K, corresponding to the paramagnetic-magnetically ordered state (MO), MO-antiferromagnetic (AFM), AFM-AFM, and AFM-ferromagnetic (FM) transitions, respectively. The anomaly at 9.5 K is only visible with H||[010] by magnetic susceptibility measurements, indicating that the AFM-AFM transition only happens along[010] direction in ab-plane. The four magnetic transitions are strongly suppressed by high external field. Finally, the field-temperature phase diagrams of CeSb2 with different orientations of the applied field in ab-plane are constructed and indicate the highly anisotropic nature of the magnetization of CeSb2.

关键词: CeSb2, electronic properties, magnetic properties

Abstract: We have systematically studied the behaviors of the resistivity and magnetization of CeSb2 single crystals as a function of temperature and external field. Four anomalies in the resistivity/magnetization-versus-temperature curves are observed at low magnetic field. They are located at 15.5 K, 11.5 K, 9.5 K, and 6.5 K, corresponding to the paramagnetic-magnetically ordered state (MO), MO-antiferromagnetic (AFM), AFM-AFM, and AFM-ferromagnetic (FM) transitions, respectively. The anomaly at 9.5 K is only visible with H||[010] by magnetic susceptibility measurements, indicating that the AFM-AFM transition only happens along[010] direction in ab-plane. The four magnetic transitions are strongly suppressed by high external field. Finally, the field-temperature phase diagrams of CeSb2 with different orientations of the applied field in ab-plane are constructed and indicate the highly anisotropic nature of the magnetization of CeSb2.

Key words: CeSb2, electronic properties, magnetic properties

中图分类号:  (Strongly correlated electron systems; heavy fermions)

  • 71.27.+a
51.60.+a (Magnetic properties)