中国物理B ›› 2018, Vol. 27 ›› Issue (11): 117401-117401.doi: 10.1088/1674-1056/27/11/117401

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇    下一篇

A single-crystal neutron diffraction study on magnetic structure of CsCo2Se2

Juanjuan Liu(刘娟娟), Jieming Sheng(盛洁明), Wei Luo(罗伟), Jinchen Wang(汪晋辰), Wei Bao(鲍威), Jinhu Yang(杨金虎), Minghu Fang(方明虎), S A Danilkin   

  1. 1 Department of Physics, Renmin University of China, Beijing 100872, China;
    2 Department of Physics, Hangzhou Normal University, Hangzhou 310036, China;
    3 Department of Physics, Zhejiang University, Hangzhou 310027, China;
    4 Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China;
    5 Bragg Institute, ANSTO, Locked Bag 2001, Kirrawee DC NSW 2232, Australia
  • 收稿日期:2018-10-15 修回日期:2018-10-25 出版日期:2018-11-05 发布日期:2018-11-05
  • 通讯作者: Wei Bao E-mail:wbao@ruc.edu.cn
  • 基金资助:

    Project supported by the National Basic Research Program of China (Grant No. 2012CB921700), the National Natural Science Foundation of China (Grant No. 11190024), the Fundamental Research Funds for the Central Universities, China, and the Research Funds of Renmin University of China (Grant Nos. 17XNLF04 and 17XNLF06). J.S. acknowledges support from China Scholarship Council.

A single-crystal neutron diffraction study on magnetic structure of CsCo2Se2

Juanjuan Liu(刘娟娟)1, Jieming Sheng(盛洁明)1, Wei Luo(罗伟)1, Jinchen Wang(汪晋辰)1, Wei Bao(鲍威)1, Jinhu Yang(杨金虎)2, Minghu Fang(方明虎)3,4, S A Danilkin5   

  1. 1 Department of Physics, Renmin University of China, Beijing 100872, China;
    2 Department of Physics, Hangzhou Normal University, Hangzhou 310036, China;
    3 Department of Physics, Zhejiang University, Hangzhou 310027, China;
    4 Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China;
    5 Bragg Institute, ANSTO, Locked Bag 2001, Kirrawee DC NSW 2232, Australia
  • Received:2018-10-15 Revised:2018-10-25 Online:2018-11-05 Published:2018-11-05
  • Contact: Wei Bao E-mail:wbao@ruc.edu.cn
  • Supported by:

    Project supported by the National Basic Research Program of China (Grant No. 2012CB921700), the National Natural Science Foundation of China (Grant No. 11190024), the Fundamental Research Funds for the Central Universities, China, and the Research Funds of Renmin University of China (Grant Nos. 17XNLF04 and 17XNLF06). J.S. acknowledges support from China Scholarship Council.

摘要:

The magnetic structure of CsCo2Se2 was investigated using single-crystal neutron diffraction technique. An antiferromagnetic transition with the propagation vector (0,0,1) was observed at TN=78 K. The Co magnetic moment 0.772(6) μB at 10 K pointing in the basal plane couples ferromagnetically in the plane, which stacks antiferromagnetically along the c direction. Tuning and suppressing the interplane antiferromagnetic interaction may be crucial to induce a superconducting state in the material.

关键词: neutron diffraction, magnetic structure, superconductivity

Abstract:

The magnetic structure of CsCo2Se2 was investigated using single-crystal neutron diffraction technique. An antiferromagnetic transition with the propagation vector (0,0,1) was observed at TN=78 K. The Co magnetic moment 0.772(6) μB at 10 K pointing in the basal plane couples ferromagnetically in the plane, which stacks antiferromagnetically along the c direction. Tuning and suppressing the interplane antiferromagnetic interaction may be crucial to induce a superconducting state in the material.

Key words: neutron diffraction, magnetic structure, superconductivity

中图分类号:  (Properties of superconductors)

  • 74.25.-q
74.70.-b (Superconducting materials other than cuprates) 75.25.-j (Spin arrangements in magnetically ordered materials (including neutron And spin-polarized electron studies, synchrotron-source x-ray scattering, etc.)) 75.40.Cx (Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.))