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Non-Fermi Liquids in Conducting Two-Dimensional Networks

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Title
Non-Fermi Liquids in Conducting Two-Dimensional Networks
Author(s)
Jongjun M. Lee; Masaki Oshikawa; Gil Young Cho
Publication Date
2021-05
Journal
PHYSICAL REVIEW LETTERS, v.126, no.18
Publisher
AMER PHYSICAL SOC
Abstract
We explore the physics of novel fermion liquids emerging from conducting networks, where 1D metallic wires form a periodic 2D superstructure. Such structure naturally appears in marginally twisted bilayer graphenes, moire transition metal dichalcogenides, and also in some charge-density wave materials. For these network systems, we theoretically show that a remarkably wide variety of new non-Fermi liquids emerge and that these non-Fermi liquids can be classified by the characteristics of the junctions in networks. Using this, we calculate the electric conductivity of the non-Fermi liquids as a function of temperature, which show markedly different scaling behaviors than a regular 2D Fermi liquid.
URI
https://pr.ibs.re.kr/handle/8788114/9742
DOI
10.1103/PhysRevLett.126.186601
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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