The multiple topological phases in a new family of compounds ACrTe (A = Na, K, Rb, Cs) predicted by first-principles calculations
文献类型：期刊论文
| 作者 | Peng, Shuaiqi1,2; Wang, Qing1,2; Huang, Xinliang1,2; Hao, Ning2 |
| 刊名 | PHYSICAL CHEMISTRY CHEMICAL PHYSICS
 |
| 出版日期 | 2024-09-11 |
| 卷号 | 26 |
| ISSN号 | 1463-9076 |
| DOI | 10.1039/d4cp02235a |
| 通讯作者 | Wang, Qing(wq2018@mail.ustc.edu.cn) ; Hao, Ning(haon@hmfl.ac.cn) |
| 英文摘要 | Based on first-principles calculations, we predict a new family of chromium-based compounds, ACrTe (A = Na, K, Rb, Cs), which share the same structure as the iron-based superconductor LiFeAs. We show that all these materials are narrow-gap antiferromagnetic (AFM) semiconductors. The AFM order is of the checkerboard type within Cr layers, while the interlayer coupling changes from ferromagnetic (FM) for NaCrTe to AFM for KCrTe, RbCrTe and CsCrTe. Interestingly, we find that the small gap is sensitive to in-plane biaxial strain and magnetic fields, which can tune the bulk compounds to become Dirac and Weyl semimetals and tune the monolayer case to exhibit quantum spin and anomalous Hall effects. Significantly, both Dirac and Weyl semimetals show clean topological structures with a long-sought single pair of Dirac and Weyl points at the Fermi level. Our studies may provide an ideal candidate material to study Dirac and Weyl physics and to realize clean quantum spin and anomalous Hall effects. We predict a new family of chromium-based compounds ACrTe (A = Na, K, Rb, Cs) with different topological properties by modulating magnetism and stress in three and two dimensions. |
| WOS关键词 | HIGH-TEMPERATURE SUPERCONDUCTIVITY ; IRON |
| 资助项目 | CASHIPS Director's Fund[BJPY2023A09] ; Anhui Provincial Major ST Project[s202305a12020005] ; Major Basic Program of Natural Science Foundation of Shandong Province[ZR2021ZD01] ; High Magnetic Field Laboratory of Anhui Province, China |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001299379700001 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | CASHIPS Director's Fund ; Anhui Provincial Major ST Project ; Major Basic Program of Natural Science Foundation of Shandong Province ; High Magnetic Field Laboratory of Anhui Province, China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/134881]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Wang, Qing; Hao, Ning |
| 作者单位 | 1.Univ Sci & Technol China, Sci Isl Branch, Grad Sch, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Anhui Key Lab Low Energy Quantum Mat & Devices, High Magnet Field Lab, HFIPS, Hefei 230031, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng, Shuaiqi,Wang, Qing,Huang, Xinliang,et al. The multiple topological phases in a new family of compounds ACrTe (A = Na, K, Rb, Cs) predicted by first-principles calculations[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2024,26. |
| APA | Peng, Shuaiqi,Wang, Qing,Huang, Xinliang,&Hao, Ning.(2024).The multiple topological phases in a new family of compounds ACrTe (A = Na, K, Rb, Cs) predicted by first-principles calculations.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,26. |
| MLA | Peng, Shuaiqi,et al."The multiple topological phases in a new family of compounds ACrTe (A = Na, K, Rb, Cs) predicted by first-principles calculations".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 26(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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