| Effects of Dirac cone tilt in a two-dimensional Dirac semimetal | |
| Yang, Zhao-Kun1; Wang, Jing-Rong2; Liu, Guo-Zhu1 | |
| 刊名 | PHYSICAL REVIEW B
 |
| 2018-11-19 | |
| 卷号 | 98期号:19页码:20 |
| ISSN号 | 2469-9950 |
| DOI | 10.1103/PhysRevB.98.195123 |
| 通讯作者 | Liu, Guo-Zhu(gzliu@ustc.edu.cn) |
| 英文摘要 | A two-dimensional Dirac semimetal with tilted Dirac cone has recently attracted increasing interest. The tilt of Dirac cone can be realized in a number of materials, including deformed graphene, surface state of topological crystalline insulator, and certain organic compounds. We study how Dirac cone tilting affects the low-energy properties by presenting a renormalization group analysis of the Coulomb interaction and quenched disorder. A random scalar potential or random vector potential along the tilting direction cannot exist on its own as it always dynamically generates a new type of disorder, which dominates at low energies and turns the system into a compressible diffusive metal. Consequently, the fermions acquire a finite disorder scattering rate. Moreover, the isolated band-touching point is replaced by a bulk Fermi arc in the Brillouin zone. These results are not qualitatively changed when the Coulomb interaction is incorporated. In comparison, random mass and random vector potential along the nontilting direction can exist individually, without generating other types of disorder. They both suppress tilt at low energies, and do not produce bulk Fermi arc. Upon taking the Coulomb interaction into account, the system enters into a stable quantum critical state, in which the fermion field acquires a finite anomalous dimension but the dynamical exponent z = 1. These results indicate that Dirac cone tilt does lead to some qualitatively different low-energy properties compared to the untilted system. |
| 资助项目 | National Natural Science Foundation of China[11574285] ; National Natural Science Foundation of China[11504379] ; Fundamental Research Funds for the Central Universities (P. R. China)[WK2030040085] ; Natural Science Foundation of Anhui Province[1608085MA19] |
| WOS关键词 | TOPOLOGICAL PHASE-TRANSITIONS ; HALL CRITICAL-POINTS ; WEYL SEMIMETALS ; QUANTUM CRITICALITY ; SUSPENDED GRAPHENE ; FERMIONS ; INSULATORS ; SYSTEMS |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000450547800001 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. 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China) ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Fundamental Research Funds for the Central Universities (P. R. China) ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province |
| 内容类型 | 期刊论文 |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/34387]  |
| 专题 | 合肥物质科学研究院_中科院强磁场科学中心 |
| 通讯作者 | Liu, Guo-Zhu |
| 作者单位 | 1.Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, High Magnet Field Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, Hefei 230031, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Zhao-Kun,Wang, Jing-Rong,Liu, Guo-Zhu. Effects of Dirac cone tilt in a two-dimensional Dirac semimetal[J]. PHYSICAL REVIEW B,2018,98(19):20. |
| APA | Yang, Zhao-Kun,Wang, Jing-Rong,&Liu, Guo-Zhu.(2018).Effects of Dirac cone tilt in a two-dimensional Dirac semimetal.PHYSICAL REVIEW B,98(19),20. |
| MLA | Yang, Zhao-Kun,et al."Effects of Dirac cone tilt in a two-dimensional Dirac semimetal".PHYSICAL REVIEW B 98.19(2018):20. |
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