High chern number two dimensional materials
WebThe observed high-Chern-number and high-temperature Chern insulator states require applying weak magnetic field due to the antiferromagnetic nature of MnBi2Te4 at zero magnetic field. As the ordinary QHE can also give rise to quantized Hall resistance plateau and vanishing longitudinal resistance, it is necessary to exclude the influence of Landau … WebWe report Chern insulating phases emerging from a single layer of layered chalcogenide CrSiTe3, a transition metal trichacogenides (TMTC) material, in the presence of charge doping. Due to strong hybridization with Te p orbitals, the spin-orbit coupling effect opens a finite band gap, leading to a nontrivial topology of the Cr eg conduction band manifold …
High chern number two dimensional materials
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Web22 de jun. de 2016 · We study the two-dimensional topological superconductors of spinless fermions in a checkerboard-lattice Chern-insulator model. With the short-range p-wave … WebTherefore the FDIR will carry Chern numbers 1 mod n foronevalence band and 3 modn forthe otherwith total Chern number 4 mod nor 2 for the FDIR. This is zero only for n ¼ 1, 2, 4. If the conduction and valence bands are distinct in a small region around k, the Chern number of the FDIR will be nonzero if the little group Gk
Web7 de fev. de 2024 · When the magnetization exhibits nonzero z-direction component, the system enters the high-Chern-number (i.e., C=±3) phase, even in the presence of ... Strain engineering is a promising method to manipulate the electronic and optical properties of two-dimensional (2D) materials. However, with weak van der Waals interaction, severe ... Web11 de abr. de 2024 · In this Perspective, we review recent progress in antichiral topological photonic states in magnetic photonic systems for the basic concepts, properties, and applications. Additionally, we provide an outlook for emerging frontier topics, promising opportunities, fundamental challenges, and potential applications for antichiral magnetic ...
Web20 de mai. de 2014 · Graphynes represent an emerging family of carbon allotropes that recently attracted much interest due to the tunability of the Dirac cones in the band structure. Here, we show that the spin-orbit couplings in $β$-graphyne could produce various effects related to the topological properties of its electronic bands. Intrinsic spin-orbit coupling … WebThe 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) proves that the …
Web1 High-Chern-Number and High-Temperature Quantum Hall Effect without Landau Levels Jun Ge1†, Yanzhao Liu1†, Jiaheng Li2†, Hao Li3,4†, Tianchuang Luo1, Yang Wu4,5, …
Web20 de jan. de 2024 · The quantum Hall effect (QHE) associated with Chern insulators reveals the non-trivial topological properties of two-dimensional electronic systems subject to strong magnetic field, which features finite Chern number C and chiral edge states. The latter promise robust electron transport and have received tremendous attention in both … rocks with wordsWeb14 de abr. de 2024 · Further, we also employ the Dirac-fermion approach to understand the experimentally observed high Chern numbers and topological phase transition from the … rocks with rocks inside of themWeb4 de jan. de 2024 · Figure 3a, b show two-dimensional (2D) band structures with SOC in k b = k c mirror plane, where the Weyl points—crossing points between valence bands and conduction bands—are highlighted by ... rocks wont cryWeb9 de jul. de 2024 · The high Chern number phases with a Chern number C > 1 have been observed in a recent experiment that was performed on the topological insulator (TI) … ottawa-glandorf boys basketball scoreWebThe 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. A s the ordinary QHE can also give rise to quantized Hall resistance plateau and vanishing longitudinal resistance, it is necessary to exclude the influence of Landau … rockswold college algebra 6th editionWeb14 de abr. de 2024 · The discovery of van der Waals (vdW) MnBi 2 Te 4 provides a platform for investigating the quantum anomalous Hall effect (QAHE), which is a candidate for … ottawa glandorf boys basketball tournamenthttp://home.ustc.edu.cn/~lxsphys/2024-4-15/BerryPhaseChernNumber.pdf ottawa-glandorf boys basketball