Exotic topological bands and quantum states in metal–organic and covalent–organic frameworks
Conspectus Metal–organic and covalent–organic frameworks (MOFs/COFs) have been
extensively studied for fundamental interests and their promising applications, taking …
extensively studied for fundamental interests and their promising applications, taking …
Topological quantum devices: a review
The introduction of the concept of topology into condensed matter physics has greatly
deepened our fundamental understanding of transport properties of electrons as well as all …
deepened our fundamental understanding of transport properties of electrons as well as all …
Engineering of flat bands and Dirac bands in two-dimensional covalent organic frameworks (COFs): relationships among molecular orbital symmetry, lattice symmetry …
Two-dimensional covalent organic frameworks (2D-COFs), also referred to as 2D polymer
networks, display unusual electronic-structure characteristics, which can significantly enrich …
networks, display unusual electronic-structure characteristics, which can significantly enrich …
Screening two-dimensional materials with topological flat bands
The topological flat band (TFB) has been proposed theoretically in various lattice models, to
exhibit a rich spectrum of intriguing physical behaviors. However, the experimental …
exhibit a rich spectrum of intriguing physical behaviors. However, the experimental …
Topological flat bands in self-complementary plasmonic metasurfaces
Photonics can be confined in real space with dispersion vanishing in the momentum space
due to destructive interference. In this Letter, we report the experimental realization of flat …
due to destructive interference. In this Letter, we report the experimental realization of flat …
Large-scale 2D heterostructures from hydrogen-bonded organic frameworks and graphene with distinct Dirac and flat bands
X Zhang, X Li, Z Cheng, A Chen, P Wang… - Nature …, 2024 - nature.com
The current strategies for building 2D organic-inorganic heterojunctions involve mostly wet-
chemistry processes or exfoliation and transfer, leading to interface contaminations, poor …
chemistry processes or exfoliation and transfer, leading to interface contaminations, poor …
Pseudospin Polarized Dual-Higher-Order Topology in Hydrogen-Substituted Graphdiyne
T Zhang, T Hu, Y Zhang, Z Wang - Nano Letters, 2023 - ACS Publications
Although the topological band theory is applicable to both Fermionic and bosonic systems,
the same electronic and phononic topological phases are seldom reported in one natural …
the same electronic and phononic topological phases are seldom reported in one natural …
Excited quantum anomalous and spin Hall effect: dissociation of flat-bands-enabled excitonic insulator state
Quantum anomalous Hall effect (QAHE) and quantum spin Hall effect (QSHE) are two
interesting physical manifestations of 2D materials that have an intrinsic nontrivial band …
interesting physical manifestations of 2D materials that have an intrinsic nontrivial band …
Intrinsic second-order topological insulator in two-dimensional covalent organic frameworks
As an intriguing topological phase, higher-order topological insulators have attracted
tremendous attention, but the candidate materials are limited in artificial and inorganic …
tremendous attention, but the candidate materials are limited in artificial and inorganic …
Realization of flat bands by lattice intercalation in kagome metals
Recently there has been intense interest in kagome metals, which are expected to host flat
bands (FBs). However, the observed “FBs” are not flat over the whole two-dimensional …
bands (FBs). However, the observed “FBs” are not flat over the whole two-dimensional …