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Park, Jae Whan
원자제어 저차원 전자계 연구단
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Stable Flatbands, Topology, and Superconductivity of Magic Honeycomb Networks

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Title
Stable Flatbands, Topology, and Superconductivity of Magic Honeycomb Networks
Author(s)
Jongjun M. Lee; Chenhua Geng; Jae Whan Park; Masaki Oshikawa; Sung-Sik Lee; Han Woong Yeom; Gil Young Cho
Subject
CHARGE-DENSITY WAVES, ; FERROMAGNETISM, ; 1T-TAS2, ; PHASE
Publication Date
2020-04
Journal
PHYSICAL REVIEW LETTERS, v.124, no.13, pp.137002
Publisher
AMER PHYSICAL SOC
Abstract
© 2020 American Physical Society We propose a new principle to realize flatbands which are robust in real materials, based on a network superstructure of one-dimensional segments. This mechanism is naturally realized in the nearly commensurate charge-density wave of 1T-TaS2, with the honeycomb network of conducting domain walls, and the resulting flatband can naturally explain the enhanced superconductivity. We also show that corner states, which are a hallmark of the higher-order topological insulators, appear in the network superstructure
URI
https://pr.ibs.re.kr/handle/8788114/8692
DOI
10.1103/PhysRevLett.124.137002
ISSN
0031-9007
Appears in Collections:
Center for Artificial Low Dimensional Electronic Systems(원자제어 저차원 전자계 연구단) > 1. Journal Papers (저널논문)
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