BROWSE

Related Scientist

dongheon,lee's photo.

dongheon,lee
원자제어저차원전자계연구단
more info

ITEM VIEW & DOWNLOAD

Tunable Mott Dirac and Kagome Bands Engineered on 1T-TaS2

Cited 0 time in webofscience Cited 0 time in scopus
242 Viewed 0 Downloaded
Title
Tunable Mott Dirac and Kagome Bands Engineered on 1T-TaS2
Author(s)
Dongheon Lee; Kyung-Hwan Jin; Liu, Feng; Han Woong Yeom
Publication Date
2022-10
Journal
NANO LETTERS, v.22, no.19, pp.7902 - 7909
Publisher
AMER CHEMICAL SOC
Abstract
Strongly interacting electrons in hexagonal and kagome lattices exhibit rich phase diagrams of exotic quantum states, including superconductivity and correlated topological orders. However, material realizations of these electronic states have been scarce in nature or by design. Here, we theoretically propose an approach to realize artificial lattices by metal adsorption on a 2D Mott insulator 1T-TaS2. Alkali, alkaline-earth, and group 13 metal atoms are deposited in (root 3 x root 3) R30 degrees and 2 x 2 TaS2 superstructures of honeycomb-and kagome-lattice symmetries exhibiting Dirac and kagome bands, respectively. The strong electron correlation of 1T-TaS2 drives the honeycomb and kagome systems into correlated topological phases described by Kane-Mele-Hubbard and kagome-Hubbard models. We further show that the 2/3 or 3/4 band filling of Mott Dirac and fiat bands can be achieved with a proper concentration of Mg adsorbates. Our proposal may be readily implemented in experiments, offering an attractive condensed-matter platform to exploit the interplay of correlated topological order and superconductivity.
URI
https://pr.ibs.re.kr/handle/8788114/12656
DOI
10.1021/acs.nanolett.2c02866
ISSN
1530-6984
Appears in Collections:
Center for Artificial Low Dimensional Electronic Systems(원자제어 저차원 전자계 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse