Recently, higher-order topological insulators have been proposed as a way of realizing topological states that are two or more dimensions lower than the bulk, due to the quantization of bulk quadrupole or octupole moments. However, all these proposals as well as experimental realizations have been ...
& Zhang F. Quasi-one-dimensional higher-order topological insulators. Preprint at https://arxiv.org/abs/2005.14710 (2020). Noguchi, R. et al. Evidence for a higher-order topological insulator in a three-dimensional material built from van der Waals stacking of bismuth-halide chains. Nat. ...
However, routing such wave guiding path with a flexible approach and further exploration about higher-order topological insulators are still very immature. In this regard, we wish to tackle this issue by introducing anisotropy into a local resonance plate with C4v symmetry. Through comprehensive ...
46. Previously, the experimental realizations of HOTIs were focused on 2D materials by utilizing quadrupole topological insulators32,33,34,42and 2D TIs with quantized Wannier centers37,39,40,41
on surfaces and edges but are metallic only on the hinges or at the corners have been theoretically predicted. These bizarre new materials called higher-order topological insulators are extremely rare and only the element bismuth has been experimentally proven to possibly belong to this cate...
Higher-order topological insulators are a novel type of topological phase that supports d-dimensional topological boundary states in D-dimensional systems with Dd>1. In this work, we theoretically predict that interlayer couplings in AB-stacked bilayer transition metal dichalcogenides (TMDs) lead to th...
Nanyang Technological University, Singapore 637371, SingaporeThe recent discoveries of higher-order topologi-cal insulators (HOTIs) have shifted the paradigmof topological materials, which was previouslylimited to topological states at boundaries of ma-terials, to those at boundaries of boundaries,such as...
A. et al. Planar Hall effect from the surface of topological insulators. Nat. Commun. 8, 1340 (2017). complicated coupling between lattice symmetry and electron 11. Ortiz, B. R. et al. New kagome prototype materials: discovery of KV3Sb5, RbV3Sb5, scatterings for planar transport ...
本周五将由清华大学的徐勇教授作理论物理报告,报告题目为“Higher-order topological Anderson insulators”,欢迎感兴趣的同学们踊跃参加。 主讲人:徐勇 报告题目:Higher-order topological Anderson insulators 报告时间:2021年1月15日(周五)上午9:30 报告地点:江湾物理楼S140 ...
materials that are insulating in bulk on surfaces and edges but are metallic only on the hinges or at the corners have been theoretically predicted. These bizarre new materials called higher-order topological insulators are extremely rare and only the element bismuth has been experimentally proven to...