摘要
Magnetic topological materials have attracted much attention due to the correlation between topology and magnetism.Recent studies suggest that EuCd_(2)As_(2) is an antiferromagnetic topological material.Here by carrying out thorough magnetic,electrical and thermodynamic property measurements,we discover a long-time relaxation of the magnetic susceptibility in EuCd_(2)As_(2).The(001)in-plane magnetic susceptibility at 5 K is found to continuously increase up to∼10%over the time of∼14 hours.The magnetic relaxation is anisotropic and strongly depends on the temperature and the applied magnetic field.These results will stimulate further theoretical and experimental studies to understand the origin of the relaxation process and its effect on the electronic structure and physical properties of the magnetic topological materials.
作者
Yang Wang
Cong Li
Yong Li
Xuebo Zhou
Wei Wu
Runze Yu
Jianfa Zhao
Chaohui Yin
Youguo Shi
Changqing Jin
Jianlin Luo
Lin Zhao
Tao Xiang
Guodong Liu
X.J.Zhou
王阳;李聪;李勇;周学博;吴伟;于润泽;赵建发;殷超辉;石友国;靳常青;雒建林;赵林;向涛;刘国东;周兴江(Beijing National Laboratory for Condensed Matter Physics,and Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;Songshan Lake Materials Laboratory,Dongguan 523808,China;Beijing Academy of Quantum Information Sciences,Beijing 100193,China)
基金
Supported by the National Key Research and Development Program of China(Grant Nos.2016YFA0300600 and 2018YFA0305600)
the National Natural Science Foundation of China(Grant No.11974404)
the Strategic Priority Research Program(B)of the Chinese Academy of Sciences(Grant No.XDB33000000)
the Youth Innovation Promotion Association of CAS(Grant No.2017013).
作者简介
Yang Wang,These authors contributed equally to the present work;Cong Li,These authors contributed equally to the present work;Yong Li,These authors contributed equally to the present work;Corresponding authors:Guodong Liu,Email:gdliu_ARPES@iphy.ac.cn;Corresponding authors:X.J.Zhou,Email:XJZhou@iphy.ac.cn。
