Flat bands and temperature-driven phase transition in quasi-one-dimensional zigzag chains
arXiv:2503.01535 · doi:10.1103/PhysRevLett.134.086202
Abstract
Flat-band materials have garnered extensive attention due to their captivating properties associated with strong correlation effects. While flat bands have been discovered in several types of 2D materials, their existence in 1D systems remains elusive. Here, we propose a 1D frustrated lattice, specifically the 1D zigzag lattice, as a platform for hosting flat bands. This lattice can be experimentally realized by growing CuTe chains on Cu(111). The presence of flat bands was confirmed by tight-binding model analysis, first-principles calculations, and angle-resolved photoemission spectroscopy measurements. In addition, we discovered a temperature-driven phase transition at approximately 250 K. Detailed analyses demonstrate that the system has a Tomonaga-Luttinger liquid behavior, accompanied by spin-charge separation effects. Our work unveils new prospects for investigating strongly correlated electron behaviors and topological properties in the 1D limit.
References in corpus (32)
- High temperature fractional quantum Hall states
- Dirac fermions and flat bands in the ideal kagome metal FeSn
- Interfacial mode coupling as the origin of the enhancement of Tc in FeSe films on SrTiO3
- High-temperature surface superconductivity in topological flat-band systems
- Topological flat bands in frustrated kagome lattice CoSn
- Graphene nanoribbons for quantum electronics
- Band insulator to Mott insulator transition in 1T-TaS
- Compact localized states and flatband generators in one dimension
- Visualization of the flat electronic band in twisted bilayer graphene near the magic angle twist
- Spectroscopic signatures of spin-charge separation in the quasi-one-dimensional organic conductor TTF-TCNQ
- Observation of topological flat bands in the kagome semiconductor NbCl
- Flat band states: disorder and nonlinearity
- One-dimensional flat bands in twisted bilayer germanium selenide
- Realizing Kagome Band Structure in Two-Dimensional Kagome Surface States of (=Gd,Ho)
- A simple method to construct Flat Band lattices
- Flat-Bands-Enabled Triplet Excitonic Insulator in a Di-atomic Kagome Lattice
- Theoretical possibilities for flat-band superconductivity
- Angle resolved photoemission spectroscopy reveals spin charge separation in metallic MoSe2 grain boundary
- Ubiquitous strong electron phonon coupling at the interface of FeSe/SrTiO3
- New Luttinger liquid physics from photoemission on LiMoO
- One-dimensional sawtooth and zigzag lattices for ultracold atoms
- Designer Flat Bands in Quasi-One-Dimensional Atomic Lattices
- Pairing and superconductivity in quasi one-dimensional flat band systems: Creutz and sawtooth lattices
- Excitonic Condensate in Flat Valence and Conduction Bands of Opposite Chirality
- Surface Tomonaga-Luttinger liquid state on Bi/InSb(001)
- Directional massless Dirac fermions in a layered van der Waals material with one-dimensional long-range order
- Temperature dependence of spinon and holon excitations in one-dimensional Mott insulators
- Observation of one-dimensional Dirac fermions in silicon nanoribbons
- Low-energy behaviour of strongly-interacting bosons on a flat-banded lattice above the critical filling factor
- CuTe chains on Cu(111) by deposition of 1/3 ML Te: atomic and electronic structure
- New submonolayer copper telluride phase on Cu(111) -- ad-chain and trough formation
- Temperature-driven change in band structure reflecting spin-charge separation of Mott and Kondo insulators