Quantum diffusion of massive Dirac fermions induced by symmetry breaking
文献类型：期刊论文
| 作者 | Zhang, Ting1; Tian, Chushun2,3 ; Sheng, Ping1
|
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2021 |
| 卷号 | 104期号:7页码:75427 |
| ISSN号 | 2469-9950 |
| 关键词 | TRANSPORT LOCALIZATION |
| DOI | 10.1103/PhysRevB.104.075427 |
| 英文摘要 | We show that when a two-dimensional (2D) Dirac fermion moves in disordered environments, the weak time-reversal symmetry breaking by a small mass gives rise to the diffusive wave propagation, i.e., that the wave-packet spread obeys the diffusive law of Einstein, up to a-practically inaccessible-exponentially large length. Strikingly, the diffusion constant is larger than that given by the Boltzmann kinetic theory, and grows unboundedly as the energy-to-mass ratio increases. This diffusive phenomenon is of quantum nature and different from weak antilocalization. It implies a new type of transport in topological insulators at zero temperature. |
| 学科主题 | Materials Science ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27454]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Clear Water Bay, Hong Kong, Peoples R China 2.Hong Kong Univ Sci & Technol, Inst Adv Study, Kowloon, Clear Water Bay, Hong Kong, Peoples R China 3.Chinese Acad Sci, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Ting,Tian, Chushun,Sheng, Ping. Quantum diffusion of massive Dirac fermions induced by symmetry breaking[J]. PHYSICAL REVIEW B,2021,104(7):75427. |
| APA | Zhang, Ting,Tian, Chushun,&Sheng, Ping.(2021).Quantum diffusion of massive Dirac fermions induced by symmetry breaking.PHYSICAL REVIEW B,104(7),75427. |
| MLA | Zhang, Ting,et al."Quantum diffusion of massive Dirac fermions induced by symmetry breaking".PHYSICAL REVIEW B 104.7(2021):75427. |
入库方式： OAI收割
来源：理论物理研究所
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