Stable Flatbands, Topology, and Superconductivity of Magic Honeycomb Networks
SCIE
SCOPUS
- Title
- Stable Flatbands, Topology, and Superconductivity of Magic Honeycomb Networks
- Authors
- CHO, GIL YOUNG; LEE, JONGJUN; YEOM, HAN WOONG; PARK, JAE WHAN; OSHIKAWA, MASAKI; LEE, SUNGSIK; GENG, CHENHUA
- Date Issued
- 2020-04-01
- Publisher
- AMER PHYSICAL SOC
- Abstract
- 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.
- Keywords
- CHARGE-DENSITY WAVES; FERROMAGNETISM; 1T-TAS2; PHASE
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/102496
- DOI
- 10.1103/PhysRevLett.124.137002
- ISSN
- 0031-9007
- Article Type
- Article
- Citation
- PHYSICAL REVIEW LETTERS, vol. 124, no. 13, 2020-04-01
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- There are no files associated with this item.
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