Anisotropic and mutable magnetization in Kondo lattice CeSb2

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...

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Published in中国物理B：英文版 Vol. 26; no. 6; pp. 319 - 323
Main Author 张云 朱燮刚 胡丙锋 谭世勇 谢东华 冯卫 刘琴 张文 刘瑜 宋海峰 罗丽珠 张政军 赖新春
Format Journal Article
LanguageEnglish
Published 01.06.2017
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Summary: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.
Bibliography: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.
CeSb2, electronic properties, magnetic properties
Yun Zhang1,2, Xiegang Zhu1, Bingfeng Hu3, Shiyong Tan1, Donghua Xie1, Wei Feng1, Qin Liu1, Wen Zhang1, Yu Liu5,6, Haifeng Song5,6, Lizhu Luo1, Zhengjun Zhang4, Xinchun Lai1（ 1 Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621907, China ;2Department 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 ;4Key Laboratory of Advanced Materials （MOE）, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China; 5Laboratory 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）
11-5639/O4
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/26/6/067102