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Correlated flat bands and quantum spin liquid state in a cluster Mott insulator | |
2023-12 | |
发表期刊 | COMMUNICATIONS PHYSICS
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ISSN | 2399-3650 |
EISSN | 2399-3650 |
卷号 | 6期号:1 |
发表状态 | 已发表 |
DOI | 10.1038/s42005-023-01292-z |
摘要 | Flat bands are rare in pristine solids and are unstable against electronic correlations or other types of long-range order. Unlike atomic-scale Hubbard systems or Moiré materials, where electronic correlations are either localized or long-ranged, pristine flat band systems with short-range interactions that do not break symmetry spontaneously are less known and intriguing. These systems could bridge the gap between atomic Mott insulators and Moiré correlated insulators, offering a unique platform to explore their mysterious relation. Using an analytical analysis, further verified by numerical calculations, we show that monolayer Nb3Cl8 is a unique flat band system with short-range interactions. We present clear evidence that it is a cluster Mott insulator, which nicely explains the electronic structure observed in angle-resolved photoemission spectroscopy. We further propose that monolayer Nb3Cl8 may constitute a rare example of molecular quantum spin liquid with flat bands. © 2023, The Author(s). |
关键词 | Chlorine compounds Electronic structure Monolayers Niobium compounds Photoelectron spectroscopy Quantum theory Atomic scale Band systems Electronic correlation Flat band Hubbard systems Long range orders Mott insulators Quantum spin liquid Short range interactions Spin liquid state |
URL | 查看原文 |
收录类别 | SCI ; EI |
语种 | 英语 |
资助项目 | National Key Ramp ; D Program of China[2022YFA1402703] ; National Natural Science Foundation of China[11874263] ; Shanghai Technology Innovation Action Plan[M-0006] ; Sino-German Mobility program[12147124] ; Postdoctoral Special Funds for Theoretical Physics of the National Natural Science Foundation of China[21JC1404700] ; null[20DZ1100605] |
WOS研究方向 | Physics |
WOS类目 | Physics, Multidisciplinary |
WOS记录号 | WOS:001029584400001 |
出版者 | Nature Research |
EI入藏号 | 20232914423185 |
EI主题词 | Mott insulators |
EI分类号 | 413.1 Electric Insulating Materials ; 931.4 Quantum Theory ; Quantum Mechanics |
原始文献类型 | Journal article (JA) |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/317360 |
专题 | 物质科学与技术学院 物质科学与技术学院_PI研究组_李刚组 物质科学与技术学院_硕士生 物质科学与技术学院_博士生 |
共同第一作者 | Zhang, Xuefeng |
通讯作者 | Li, Gang |
作者单位 | 1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 2.Shanghai Polytech Univ, Coll Arts & Sci, Shanghai 201209, Peoples R China 3.Zhejiang Univ, Sch Phys, Hangzhou 310027, Zhejiang, Peoples R China 4.ShanghaiTech Univ, ShanghaiTech Lab Topol Phys, Shanghai 201210, Peoples R China |
第一作者单位 | 物质科学与技术学院 |
通讯作者单位 | 物质科学与技术学院; 上海科技大学 |
第一作者的第一单位 | 物质科学与技术学院 |
推荐引用方式 GB/T 7714 | Hu, Jiayu,Zhang, Xuefeng,Hu, Cong,et al. Correlated flat bands and quantum spin liquid state in a cluster Mott insulator[J]. COMMUNICATIONS PHYSICS,2023,6(1). |
APA | Hu, Jiayu.,Zhang, Xuefeng.,Hu, Cong.,Sun, Jian.,Wang, Xiaoqun.,...&Li, Gang.(2023).Correlated flat bands and quantum spin liquid state in a cluster Mott insulator.COMMUNICATIONS PHYSICS,6(1). |
MLA | Hu, Jiayu,et al."Correlated flat bands and quantum spin liquid state in a cluster Mott insulator".COMMUNICATIONS PHYSICS 6.1(2023). |
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