Multiple Dirac states in two-dimensional topological half-metallic CrB2C2
文献类型：期刊论文
| 作者 | Zhang, Bingwen; Chen, Xuejiao; Wang, Jun |
| 刊名 | APPLIED PHYSICS LETTERS
 |
| 出版日期 | 2021 |
| 卷号 | 119期号:16 |
| 关键词 | BORON NANOSHEET |
| 英文摘要 | Recently, Dirac states in two dimensional materials have drawn great attention because of its desirable transport properties. In this paper, we predicted a two-dimensional hexagonal CrB2C2, which exhibits stable mechanical and thermal properties. Young's modulus of CrB2C2 is 485.67 N / m, which is comparable with that of graphene. In addition, CrB2C2 is half-metallic, and the ferromagnetic Curie temperature is about 1500 K, which is far above room temperature. A CrB2C2 nanosheet exhibits multiple Dirac states in the spin minority channel and forms compensated electron-hole pockets. The Fermi velocity of two different Dirac states is about 4.18 x 10 5 and 3.42 x 10 5 m / s. In the electronic band structure, the Dirac state at the K point is weakly gapped by 0.38 meV under a spin orbital interaction, while the other one could be topological nontrivially gapped by 37.4 meV, and the bottom Dirac band exhibits a nonzero Chern number at about 0.25 eV above the Fermi energy. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21380]  |
| 专题 | 2021专题_期刊论文 |
| 作者单位 | 1.Wang, J (corresponding author), Minjiang Univ, Coll Mat & Chem Engn, Ctr Adv Marine Mat & Smart Sensors, Fujian Key Lab Funct Marine Sensing Mat, Fuzhou 350108, Peoples R China. 2.Chen, XJ (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Magnet Mat & Devices, Ningbo 315201, Peoples R China. 3.Chen, XJ (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Prov Key Lab Magnet Mat & Applicat Techn, Ningbo 315201, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Zhang, Bingwen,Chen, Xuejiao,Wang, Jun. Multiple Dirac states in two-dimensional topological half-metallic CrB2C2[J]. APPLIED PHYSICS LETTERS,2021,119(16). |
| APA | Zhang, Bingwen,Chen, Xuejiao,&Wang, Jun.(2021).Multiple Dirac states in two-dimensional topological half-metallic CrB2C2.APPLIED PHYSICS LETTERS,119(16). |
| MLA | Zhang, Bingwen,et al."Multiple Dirac states in two-dimensional topological half-metallic CrB2C2".APPLIED PHYSICS LETTERS 119.16(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。