High chern number
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 … Web28 de mar. de 2024 · Chirally stacked N-layer graphene is a semimetal with ±p N band-touching at two nonequivalent corners in its Brillioun zone. We predict that an off-resonant circularly polarized light (CPL) drives chirally stacked N-layer graphene into a Floquet Chern insulators (FCIs), aka quantum anomalous Hall insulators, with tunable high Chern …
High chern number
Did you know?
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) Web10 de jul. de 2024 · The high-Chern number phases with a Chern number C>1 have been observed in a recent experiment that performed on the topological insulator (TI) multilayer structures, consisting of the alternating magnetic-doped and undoped TI layers. In this paper, we develop an effective method to determine the Chern numbers in the TI …
WebAnother way to say High Number? Synonyms for High Number (other words and phrases for High Number). Log in. Synonyms for High number. 875 other terms for high … WebWe report the experimental discovery of high-Chern-number (C = 2) quantum Hall effect without Landau levels and C = 1 Chern insulator state above the Néel temperature in MnBi 2 Te 4 devices. Abstract . View article; Supplementary data; 4D spinless topological insulator in a periodic electric circuit.
Web20 de out. de 2024 · Topological defects in Haldane model and higher Chern numbers in monolayer graphene. Zhi-Wen Chang 1, Wei-Chang Hao 2 and Xin Liu 3,1. Published 20 October 2024 ... Li H, Luo T, Wu Y, Xu Y and Wang J 2024 High-Chern-number and high-temperature quantum Hall effect without Landau levels Natl Sci. Rev. 7 1280–7. Go to … Web12 de jun. de 2015 · Inspired by the recent experimental observation of topological superconductivity in ferromagnetic chains, we consider a dilute 2D lattice of magnetic …
Web3 de mai. de 2016 · Topological Numbers and the Weyl Semimetal. Generalized Dirac monopoles in momentum space are constructed in even d+1 dimensions from the Weyl …
Web1 de jun. de 2024 · The observed high-Chern-number and high-temperature Chern insulator states require applying weak magnetic field due to the antiferromagnetic nature of MnBi 2 Te 4 at zero magnetic field. early help kent parent referralWeb10 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 … c++ stl algorithm cheat sheetWeb3 de dez. de 2024 · Topological photonic systems have recently emerged as an exciting new paradigm to guide light without back-reflections. The Chern topological numbers of a photonic platform are usually written in ... c++ stl anyWeb28 de dez. de 2012 · We report the theoretical discovery of a systematic scheme to produce topological flat bands (TFBs) with arbitrary Chern numbers. We find that generically a … cstl accreditationWeb16 de dez. de 2024 · Ge, J. et al. High-Chern-number and high-temperature quantum Hall effect without Landau levels. Natl Sci. Rev. 7, 1280–1287 (2024). Article CAS Google … cst land nav written testhttp://phyx.readthedocs.io/en/latest/TI/Weyl_semi-metal.html early help makes a differenceWeb6 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. early help manchester contact number