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Chiral solitons in a coupled double Peierls chain

Topological insulators are characterized by conducting boundary states. For those existing as two-dimensional (2D) materials, the boundaries are lines, the edge currents are 1D, and their two spin components flow in opposite directions. To address whether this handedness also applies to the edge sta... Full description

Journal Title: Science 10/09/2015, Vol.350(6257), pp.182-185
Main Author: Cheon, S.
Other Authors: Kim, T.-H. , Lee, S.-H. , Yeom, H. W.
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0036-8075 ; E-ISSN: 1095-9203 ; DOI: http://dx.doi.org/10.1126/science.aaa7055
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recordid: crossref10.1126/science.aaa7055
title: Chiral solitons in a coupled double Peierls chain
format: Article
creator:
  • Cheon, S.
  • Kim, T.-H.
  • Lee, S.-H.
  • Yeom, H. W.
subjects:
  • Topology
  • Scanning Electron Microscopy
ispartof: Science, 10/09/2015, Vol.350(6257), pp.182-185
description: Topological insulators are characterized by conducting boundary states. For those existing as two-dimensional (2D) materials, the boundaries are lines, the edge currents are 1D, and their two spin components flow in opposite directions. To address whether this handedness also applies to the edge states of 1D topological systems, Cheon et al. deposited indium atoms on the surface of silicon, where the atoms formed wires consisting of double zigzag chains. The chains underwent distortions that caused topological edge states called solitons to appear under certain conditions. The solitons came in three flavors, two of which had a definite handedness. Science, this issue p. 182 Chiral edge states are the hallmark of two- and three-dimensional topological materials, but their one-dimensional (1D) analog has not yet been found. We report that the 1D topological edge states, solitons, of the charge density wave system of indium atomic wires self-assembled on a silicon surface have chirality. The...
language: eng
source:
identifier: ISSN: 0036-8075 ; E-ISSN: 1095-9203 ; DOI: http://dx.doi.org/10.1126/science.aaa7055
fulltext: no_fulltext
issn:
  • 00368075
  • 0036-8075
  • 10959203
  • 1095-9203
url: Link


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descriptionTopological insulators are characterized by conducting boundary states. For those existing as two-dimensional (2D) materials, the boundaries are lines, the edge currents are 1D, and their two spin components flow in opposite directions. To address whether this handedness also applies to the edge states of 1D topological systems, Cheon et al. deposited indium atoms on the surface of silicon, where the atoms formed wires consisting of double zigzag chains. The chains underwent distortions that caused topological edge states called solitons to appear under certain conditions. The solitons came in three flavors, two of which had a definite handedness. Science, this issue p. 182 Chiral edge states are the hallmark of two- and three-dimensional topological materials, but their one-dimensional (1D) analog has not yet been found. We report that the 1D topological edge states, solitons, of the charge density wave system of indium atomic wires self-assembled on a silicon surface have chirality. The...
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date2015-10-09