Absence of Dirac states in BaZnBi2 induced by spin-orbit coupling
文献类型：期刊论文
| 作者 | Ren, WJ; Wang, AF; Graf, D; Liu, Y; Zhang, ZD; Yin, WG; Petrovic, C; Ren, WJ (reprint author), Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.; Ren, WJ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China. |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2018-01-22 |
| 卷号 | 97期号:3页码:- |
| 关键词 | Topological Insulators Ultrahigh Mobility Magnetoresistance Graphene |
| ISSN号 | 2469-9950 |
| 英文摘要 | We report magnetotransport properties of BaZnBi2 single crystals. Whereas electronic structure features Dirac states, such states are removed from the Fermi level by spin-orbit coupling (SOC) and consequently electronic transport is dominated by the small hole and electron pockets. Our results are consistent with not only three-dimensional, but also with quasi-two-dimensional portions of the Fermi surface. The SOC-induced gap in Dirac states is much larger when compared to isostructural SrMnBi2. This suggests that not only long-range magnetic order, but also mass of the alkaline-earth atoms A in ABX(2) (A = alkaline-earth, B = transition-metal, and X = Bi/Sb) are important for the presence of low-energy states obeying the relativistic Dirac equation at the Fermi surface.; We report magnetotransport properties of BaZnBi2 single crystals. Whereas electronic structure features Dirac states, such states are removed from the Fermi level by spin-orbit coupling (SOC) and consequently electronic transport is dominated by the small hole and electron pockets. Our results are consistent with not only three-dimensional, but also with quasi-two-dimensional portions of the Fermi surface. The SOC-induced gap in Dirac states is much larger when compared to isostructural SrMnBi2. This suggests that not only long-range magnetic order, but also mass of the alkaline-earth atoms A in ABX(2) (A = alkaline-earth, B = transition-metal, and X = Bi/Sb) are important for the presence of low-energy states obeying the relativistic Dirac equation at the Fermi surface. |
| 学科主题 | Physics, Condensed Matter |
| 语种 | 英语 |
| 资助机构 | U.S. DOE-BES, Division of Materials Science and Engineering [DE-SC0012704]; National Natural Science Foundation of China [51671192, 51531008]; NSF [DMR-1157490]; state of Florida |
| 公开日期 | 2018-06-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79572]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Ren, WJ (reprint author), Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.; Ren, WJ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Ren, WJ,Wang, AF,Graf, D,et al. Absence of Dirac states in BaZnBi2 induced by spin-orbit coupling[J]. PHYSICAL REVIEW B,2018,97(3):-. |
| APA | Ren, WJ.,Wang, AF.,Graf, D.,Liu, Y.,Zhang, ZD.,...&Ren, WJ .(2018).Absence of Dirac states in BaZnBi2 induced by spin-orbit coupling.PHYSICAL REVIEW B,97(3),-. |
| MLA | Ren, WJ,et al."Absence of Dirac states in BaZnBi2 induced by spin-orbit coupling".PHYSICAL REVIEW B 97.3(2018):-. |
入库方式： OAI收割
来源：金属研究所
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