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DOI | 10.1126/science.aau8740 |
Non-Abelian band topology in noninteracting metals | |
Wu, QuanSheng1,2; Soluyanov, Alexey A.3,4; Bzdusek, Tomas5,6 | |
2019-09-20 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 365期号:6459页码:1273-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland; Russia; USA |
英文摘要 | Electron energy bands of crystalline solids generically exhibit degeneracies called band-structure nodes. Here, we introduce non-Abelian topological charges that characterize line nodes inside the momentum space of crystalline metals with space-time inversion ( PT) symmetry and with weak spin-orbit coupling. We show that these are quaternion charges, similar to those describing disclinations in biaxial nematics. Starting from two-band considerations, we develop the complete many-band description of nodes in the presence of PT and mirror symmetries, which allows us to investigate the topological stability of nodal chains in metals. The non-Abelian charges put strict constraints on the possible nodal-line configurations. Our analysis goes beyond the standard approach to band topology and implies the existence of one-dimensional topological phases not present in existing classifications. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000487547400039 |
WOS关键词 | ELECTRONIC-STRUCTURE ; PHASE ; CLASSIFICATION ; DEFECTS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/202361 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Ecole Polytech Fed Lausanne, Inst Phys, CH-1015 Lausanne, Switzerland; 2.Ecole Polytech Fed Lausanne, Natl Ctr Computat Design & Discovery Novel Mat MA, CH-1015 Lausanne, Switzerland; 3.Univ Zurich, Phys Inst, Winterthurerstr 190, CH-8057 Zurich, Switzerland; 4.St Petersburg State Univ, Dept Phys, St Petersburg 199034, Russia; 5.Stanford Univ, Dept Phys, McCullough Bldg, Stanford, CA 94305 USA; 6.Stanford Univ, Stanford Ctr Topol Quantum Phys, Stanford, CA 94305 USA |
推荐引用方式 GB/T 7714 | Wu, QuanSheng,Soluyanov, Alexey A.,Bzdusek, Tomas. Non-Abelian band topology in noninteracting metals[J]. SCIENCE,2019,365(6459):1273-+. |
APA | Wu, QuanSheng,Soluyanov, Alexey A.,&Bzdusek, Tomas.(2019).Non-Abelian band topology in noninteracting metals.SCIENCE,365(6459),1273-+. |
MLA | Wu, QuanSheng,et al."Non-Abelian band topology in noninteracting metals".SCIENCE 365.6459(2019):1273-+. |
条目包含的文件 | 条目无相关文件。 |
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