Topological band engineering of graphene nanoribbons

DJ Rizzo, G Veber, T Cao, C Bronner, T Chen, F Zhao… - Nature, 2018 - nature.com
Topological insulators are an emerging class of materials that host highly robust in-gap
surface or interface states while maintaining an insulating bulk,. Most advances in this field …

Engineered electronic states in atomically precise artificial lattices and graphene nanoribbons

L Yan, P Liljeroth - Advances in Physics: X, 2019 - Taylor & Francis
The fabrication of atomically precise structures with designer electronic properties is one of
the emerging topics in condensed matter physics. The required level of structural control can …

Atomic-scale visualization of chiral charge density wave superlattices and their reversible switching

X Song, L Liu, Y Chen, H Yang, Z Huang, B Hou… - Nature …, 2022 - nature.com
Chirality is essential for various phenomena in life and matter. However, chirality and its
switching in electronic superlattices, such as charge density wave (CDW) superlattices …

Circular dichroism of emergent chiral stacking orders in quasi-one-dimensional charge density waves

SW Kim, HJ Kim, S Cheon, TH Kim - Physical Review Letters, 2022 - APS
Chirality-driven optical properties in charge density waves are of fundamental and practical
importance. Here, we investigate the interaction between circularly polarized light and …

Mobile Kink Solitons in a Van der Waals Charge‐Density‐Wave Layer

J Lee, JW Park, GY Cho, HW Yeom - Advanced Materials, 2023 - Wiley Online Library
Kinks, point‐like geometrical defects along dislocations, domain walls, and DNA, are stable
and mobile, as solutions of a sine‐Gordon wave equation. While they are widely …

Quantized polarization and Majorana fermions beyond tenfold classification

SH Han, M Kang, MJ Park, S Cheon - Communications Physics, 2024 - nature.com
Exploration of topology is central in condensed matter physics and applications to fault-
tolerant quantum information. The bulk-boundary correspondence and tenfold classification …

Topological soliton molecule in quasi 1D charge density wave

T Im, SK Song, JW Park, HW Yeom - Nature Communications, 2023 - nature.com
Soliton molecules, bound states of two solitons, can be important for the informatics using
solitons and the quest for exotic particles in a wide range of physical systems from …

Tuneable topological domain wall states in engineered atomic chains

MN Huda, S Kezilebieke, T Ojanen, R Drost… - Npj quantum …, 2020 - nature.com
Topological modes in one-and two-dimensional systems have been proposed for numerous
applications utilizing their exotic electronic responses. The 1D, zero-energy, topologically …

Revealing inverted chirality of hidden domain wall states in multiband systems without topological transition

SG Jeong, SH Han, TH Kim, S Cheon - Communications Physics, 2023 - nature.com
Chirality, a fundamental concept from biological molecules to advanced materials, is
prevalent in nature. Yet, its intricate behavior in specific topological systems remains poorly …

Subsymmetry protected topology in topological insulators and superconductors

M Kang, M Lee, S Cheon - Physical Review Research, 2024 - APS
Exploration of topology protected by a certain symmetry is central in condensed matter
physics. A recent idea of subsymmetry protected (SSP) topology—remains of a broken …