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Filling-enforced obstructed atomic insulators

WebApr 19, 2024 · The obstructed atomic insulator (OAI) is unique in that it is a topologically nontrivial insulating material, but the band representations deduced from irreducible representations are not derived ... WebJun 17, 2024 · Remarkably, the filling enforced criteria enable the identification of obstructed atomic bands without knowing the representations of the band structures. Hence, no ab-initio calculations are needed for the filling enforced criteria, although they are needed to obtain the band gaps.

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WebNov 8, 2024 · Ferroelectric higher-order topological insulator in two dimensions Ning Mao, 1 Runhan Li, 1 Xiaorong Zou, 1 Ying Dai, 1, ∗ Baibiao Huang, 1 and Chengwang Niu 1, † WebJun 17, 2024 · The interesting group, the OAI, have a center of charge not localized on the atoms. Using the theory of topological quantum chemistry, in this work we first derive … sports ref cbb https://pineleric.com

Dielectric response of the PTFE. (a) Structure of the PTFE. (b ...

WebJul 6, 2024 · F or instance, obstructed atomic insulators (OAIs) and orbital-selected OAIs (OO AIs) form as results of. the spatial obstruction and representation obstruction, respec-tively [21]. WebApr 4, 2024 · Here, using the topological quantum chemistry theory, we present a strategy to reach two-dimensional (2D) quasi-particles, which is benefiting from featured floating surface states (FSSs) of a... WebSymmetry-enforced chiral hinge states and surface quantum anomalous Hall effect in the magnetic axion insulator Bi 2–x Sm x Se 3. C Yue, Y Xu, Z Song, H Weng, YM Lu, C Fang, X Dai ... Filling-enforced obstructed atomic insulators. Y Xu, L Elcoro, ZD Song, MG Vergniory, C Felser, SSP Parkin, N Regnault, ... arXiv preprint arXiv:2106.10276 ... shelton restaurants bridgeport ave

[2106.10276v1] Filling-Enforced Obstructed Atomic …

Category:Filling-enforced quantum band insulators in spin-orbit

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Filling-enforced obstructed atomic insulators

Obstructed atomic insulators: A rational strategy to reach two ...

WebSep 9, 2024 · Abstract: Topological band insulators and (semi-) metals can arise out of atomic insulators when the hopping strength between electrons increases. Such … WebAccording to both the database of TQC website and filling-enforced OAI [41], the group-IV elemental semiconductors indeed are classified into topologically trivial insulators. However, a recent...

Filling-enforced obstructed atomic insulators

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WebTopologically trivial insulators come in two kinds: atomic, where the Wannier charge centers (WCCs) are localized on the atoms, and obstructed atomic, where the WCCs are located away from the atoms. Webinsulator to be a lling enforced obstructed atomic insulator (feOAI) in the 1651 Shubnikov space groups. Remarkably, the lling enforced criteria enable the identi cation of …

WebMay 31, 2024 · Three-Dimensional Real Space Invariants, Obstructed Atomic Insulators and A New Principle for Active Catalytic Sites. arXiv: 2111.02433v1 (2024). 9Xu, Y. et al. … WebThe interesting group, the OAI, have a center of charge not localized on the atoms. Using the theory of topological quantum chemistry, in this work we first derive the necessary …

WebThe obstructed atomic insulator (OAI) is unique in that it is a topologically nontrivial insulating material, but the band representations deduced from irreducible representations are not... Webcally that in systems with spin-orbit coupling (SOC), there are filling-enforced quantum band insulators (feQBIs) realized at electron fillings nforwhichnoreferenceAIwiththesa …

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WebApr 5, 2024 · Massive 1D Dirac Line, Solitons and Reversible Manipulation on the Surface of a Prototype Obstructed Atomic Insulator, Silicon April 2024 DOI: 10.21203/rs.3.rs-2781859/v1 sports reference college football yaleWebTopologically trivial insulators come in two kinds: atomic, where the Wannier charge centers (WCCs) are localized on the atoms, and obstructed atomic, where the WCCs are located away from the atoms. shelton rentals ctWebFilling-Enforced Obstructed Atomic Insulators @inproceedings{Xu2024FillingEnforcedOA, title={Filling-Enforced Obstructed Atomic Insulators}, author={Yuanfeng Xu and Luis Elcoro and Zhida Song and Maia G. Vergniory and Claudia Felser and Stuart S. P. Parkin and Nicolas Regnault and Juan L. Ma{\~n}es … sports ref college basketballWebOur framework can be applied to any symmetry-identifiable band topology, and we demonstrate its applicability to several prominent kinds of three-dimensional band … sports refereeingWebDownload scientific diagram S (green) and ∂ δ S (red) for H SSH from publication: Topological obstructed atomic limit insulators by annihilating Dirac fermions We show that annihilating a ... sports reference college basketball byuWebJun 17, 2024 · In this paper, we show that, remarkably, for a subset of the topologically trivial insulators, knowing only their electron number and the Wyckoff positions of the … shelton rezidor islamabadWebIn (f), the highest valence band and the lowest conduction band are separated by a large band gap, and the (100) surface is insulating. On the other hand, the valence and conduction bands on the (001) surface are degenerate at the high-symmetry points, and the (001) surface in (d) is metallic. - "Filling-Enforced Obstructed Atomic Insulators" sports referee