WebThe Chern number Q associated to our structure is defined via the sum of the Berry fluxes of all the plaquettes forming the closed torus surface: Q D 1 2 X nm F nm: (2.13) The fact that the Chern number Q is defined via the gauge invariant Berry fluxes ensures that Q itself is gauge invariant. Furthermore, taking the arg of Eq.(2.12) Web27 de out. de 2011 · High Chern number quantum anomalous Hall phases in single-layer graphene with Haldane orbital coupling Tsung-Wei Chen, Zhi-Ren Xiao, Dah-Wei Chiou, …
Topological flat band models with arbitrary Chern numbers
Web10 de jul. de 2024 · Many topological phases discovered so far have a Chern number of 1 or 2, but higher values are also theoretically possible. Schröter et al. predicted that the … Web6 de dez. de 2013 · It is shown that the spin-Chern number can takes an arbitrary high value for certain QH systems. This is a new type of topological insulators, which we may call high spin-Chern insulators. infuse字幕格式
[2107.04931] High-Chern number phase in the topological …
Web23 de jul. de 2024 · The experimental discovery of high-Chern-number QHE (C = 2) without Landau levels and C = 1 Chern insulator state displaying a nearly quantized Hall resistance plateau above the Néel temperature in MnBi2Te4 devices is reported. Abstract The quantum Hall effect (QHE) with quantized Hall resistance of h/νe2 started the … Web14 de abr. de 2024 · DOI: 10.1103/physrevb.105.155122 Corpus ID: 248198900; High Chern number quantum anomalous Hall effect tunable by stacking order in van der Waals topological insulators @article{Zhu2024HighCN, title={High Chern number quantum anomalous Hall effect tunable by stacking order in van der Waals topological insulators}, … Web14 de mar. de 2013 · One way to realize a Chern insulator is to start from a time-reversal-invariant TI. These materials, whose topological properties are induced by spin-orbit coupling, were experimentally realized soon after the theoretical predictions in both 2D and 3D systems (12, 13).Breaking the TRS of a suitable TI by introducing ferromagnetism … infuse 阿里云盘 错误