Experimental Realization of Two-Dimensional Weak Topological Insulators.
Sign Up to like & getrecommendations! Published in 2022 at "Nano letters"
DOI: 10.1021/acs.nanolett.2c00555
Abstract: We report the experimental realization of a two-dimensional (2D) weak topological insulator (WTI) in spinless Su-Schrieffer-Heeger circuits with parity-time and chiral symmetries. Strong and weak Z2 topological indexes are adopted to explain the experimental findings… read more here.
Keywords: two dimensional; experimental realization; topological insulators; realization two ... See more keywords
Chemical Gating of a Weak Topological Insulator: Bi14Rh3I9.
Sign Up to like & getrecommendations! Published in 2017 at "Nano letters"
DOI: 10.1021/acs.nanolett.7b03001
Abstract: The compound Bi14Rh3I9 has recently been suggested as a weak three-dimensional topological insulator on the basis of angle-resolved photoemission and scanning-tunneling experiments in combination with density functional (DF) electronic structure calculations. These methods unanimously support… read more here.
Keywords: insulator bi14rh3i9; gating weak; chemical gating; insulator ... See more keywords
Discovery of a weak topological insulating state and van Hove singularity in triclinic RhBi2
Sign Up to like & getrecommendations! Published in 2021 at "Nature Communications"
DOI: 10.1038/s41467-021-22136-w
Abstract: Time reversal symmetric (TRS) invariant topological insulators (TIs) fullfil a paradigmatic role in the field of topological materials, standing at the origin of its development. Apart from TRS protected strong TIs, it was realized early… read more here.
Keywords: state; van hove; hove singularity; rhbi2 ... See more keywords
Hybrid-order topology of weak topological insulators
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DOI: 10.1103/physrevb.102.041122
Abstract: We consider weak topological insulators with a twofold rotation symmetry around the dark direction, and show that these systems can be endowed with the topological crystalline structure of a higher-order topological insulator protected by rotation… read more here.
Keywords: topological insulators; hybrid order; topology; weak topological ... See more keywords
Synthesizing Weyl semimetals in weak topological insulator and topological crystalline insulator multilayers
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.081411
Abstract: We propose a different route to time-reversal invariant Weyl semimetals employing multilayer heterostructures comprising ordinary "trivial" insulators and nontrivial insulators with \textit{pairs} of protected Dirac cones on the surface. We consider both the case of… read more here.
Keywords: weyl semimetals; topological crystalline; weyl; insulator ... See more keywords