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Scanning tunneling microscopic investigation on morphology of magneticWeyl semimetal YbMnBi_2

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Zhu Zhen 1   Yan Dong 2   Nie Xiaoang 1   Xu Haoke 1   Yang Xu 1   Guan Dandan 1,3,4   Wang Shiyong 1,3,4   Li Yaoyi 1,3,4   Liu Canhua 1,3,4   Liu Junwei 5   Luo Huixia 2   Zheng Hao 1,3,4 *   Jia Jinfeng 1,3,4 *  
文摘 YbMnBi_2 is a recently discovered time-reversal-symmetry breaking type-II Weyl semimetal. However, as a representation of the new category of topological matters, the scanning tunneling microcopy (STM) results on such important material are still absent. Here, we report the STM investigations on the morphology of vacuum cleaved single crystalline YbMnBi_2 samples. A hill and valley type of topography is observed on the YbMnBi_2 surface, which is consistent with the non-layer nature of its crystal structure. Analysis of STM images yields the information of the index of the vicinal surface. Our results here lay a playground of future atomic scale research on YbMnBi_2.
来源 Chinese Physics. B ,2019,28(7):077302 【核心库】
DOI 10.1088/1674-1056/28/7/077302
关键词 Weyl semimetal ; topological insulator ; scanning tunneling microscopy
地址

1. School of Physics and Astronomy, Shanghai Jiao Tong University, Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education);;Shenyang National Laboratory for Materials Science, Shanghai, 200240  

2. Department of Physics, National Sun Yat-Sen University, Guangzhou, 510275  

3. Nanjing University, Collaborative Innovation Center of Advanced Microstructures, Nanjing, 210093  

4. Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, 200240  

5. Hong Kong University of Science and Technology, Hong Kong

语种 英文
文献类型 研究性论文
ISSN 1674-1056
学科 物理学;机械、仪表工业
基金 Project supported by the “Shuguang Program” from Shanghai Education Development Foundation and Shanghai Municipal Education Commission, Ministry of Science and Technology of China ;  国家自然科学基金 ;  the Strategic Priority Research Program of Chinese Academy of Sciences
文献收藏号 CSCD:6560059

参考文献 共 61 共4页

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引证文献 4 篇

1 孙蓟策 拓扑半金属AuTe_2 Br,YbMnBi_2和ZrSiSe的原子尺度表面形貌研究 电子显微学报,2019,38(5):526-530
CSCD被引 0 次

2 Wang Cong Crystal structure and electromagnetic responses of tetragonal GdAlGe Chinese Physics. B,2020,29(12):127502
CSCD被引 2 次

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