Majorana Corner Modes in a Second-Order Kitaev Spin Liquid
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.98.054432
Abstract: Higher-order topological insulators are distinguished by the existence of topologically protected modes with codimension two or higher. Here, we report the manifestation of a second-order topological insulator in a two dimensional frustrated quantum magnet, which… read more here.
Keywords: second order; order; spin liquid; corner modes ... See more keywords
Topological Corner Modes Induced by Dirac Vortices in Arbitrary Geometry.
Sign Up to like & getrecommendations! Published in 2021 at "Physical review letters"
DOI: 10.1103/physrevlett.126.226802
Abstract: Recently, higher-order topologies have been experimentally realized, featuring topological corner modes (TCMs) between adjacent topologically distinct domains. However, they have to comply with specific spatial symmetries of underlying lattices, hence their TCMs only emerge in… read more here.
Keywords: corner modes; geometry; dirac vortices; topological corner ... See more keywords
Collective topological corner modes in all-dielectric photonic crystal supercell arrays.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.453556
Abstract: In this Letter, we propose collective topological corner modes in all-dielectric photonic crystal (PhC) supercell arrays, where each supercell is a second-order topological insulator. We show that coupled multipole corner modes are embedded in surrounding… read more here.
Keywords: modes dielectric; topological corner; collective topological; corner modes ... See more keywords
Topological Corner Modes in Graphene-Coated Nanowire Waveguide
Sign Up to like & getrecommendations! Published in 2020 at "Applied Sciences"
DOI: 10.3390/app10114027
Abstract: We study the plasmonic second-order topological modes in nanowire waveguides which are covered by monolayer graphene. The waveguide arrays are arranged in the kagome lattice. In a triangle-shaped lattice, the topological modes are localized at… read more here.
Keywords: topological corner; corner modes; coated nanowire; modes graphene ... See more keywords
Generating Many Majorana Corner Modes and Multiple Phase Transitions in Floquet Second-Order Topological Superconductors
Sign Up to like & getrecommendations! Published in 2022 at "Symmetry"
DOI: 10.3390/sym14122546
Abstract: A d-dimensional, nth-order topological insulator or superconductor has localized eigenmodes at its (d−n)-dimensional boundaries (n≤d). In this work, we apply periodic driving fields to two-dimensional superconductors, and obtain a wide variety of Floquet second-order topological… read more here.
Keywords: corner modes; order topological; floquet second; second order ... See more keywords