Cite this Article
Liu Juanjuan, Sheng Jieming, Luo Wei, Wang Jinchen, Bao Wei, Yang Jinhu, Fang Minghu, Danilkin S A. A single-crystal neutron diffraction study on magnetic structure of CsCo2Se2 . Chinese Physics B, 2018, 27(11): 117401  
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A single-crystal neutron diffraction study on magnetic structure of CsCo2Se2
Liu Juanjuan1, Sheng Jieming1, Luo Wei1, Wang Jinchen1, Bao Wei1, †, Yang Jinhu2, Fang Minghu3, 4, Danilkin S A5
Department of Physics, Renmin University of China, Beijing 100872, China
Department of Physics, Hangzhou Normal University, Hangzhou 310036, China
Department of Physics, Zhejiang University, Hangzhou 310027, China
Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China
Bragg Institute, ANSTO, Locked Bag 2001, Kirrawee DC NSW 2232, Australia

 

† Corresponding author. E-mail: wbao@ruc.edu.cn

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.

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.

PACS: 74.25.-q;74.70.-b;75.25.-j;75.40.Cx
Keyword:neutron diffraction;magnetic structure;superconductivity
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