72 citations · 200 across the 14 of their papers we have counts for
14 papers
Itinerant topological magnons and spin excitons in twisted transition metal dichalcogenides: Mapping electron topology to spin counterpart
Wei-Tao Zhou, Zhao-Yang Dong, Zhao-Long Gu +1
Twisted transition metal dichalcogenides (tTMDs) provide a highly tunable platform to explore the interplay between strong correlation and topology. Among them, the properties invo…
Pseudogap with Fermi arcs and Fermi pockets in half-filled twisted transition metal dichalcogenides
Yong-Yue Zong, Zhao-Long Gu, Jian-Xin Li
Twisted transition metal dichalcogenides are a new platform for realizing strongly correlated physics with high tunability. Recent transport experiments [A. Ghiotto et al. Nature 5…
Direct observation of topological magnon polarons in a multiferroic material
Song Bao, Zhao-Long Gu, Yanyan Shangguan +12
Magnon polarons are novel elementary excitations possessing hybrid magnonic and phononic signatures, and are responsible for many exotic spintronic and magnonic phenomena. Despite…
Tropicalization of the mirror curve near the large radius limit
Zhaoxing Gu
The mirror of a toric orbifold is an affine curve called the mirror curve. In this paper, firstly, we recall the basic tools in tropical geometry and give a definition of the mirro…
Quantitative Determination of the Confinement and Deconfinement of spinons in the anomalous spectra of Antiferromagnets via the Entanglement Entropy
Zhao-Yang Dong, Wei Wang, Zhao-Long Gu +1
We introduce an entanglement entropy analysis to quantitatively identify the confinement and deconfinement of the spinons in the spin excitations of quantum magnets. Our proposal i…
Topological magnon insulator spin excitations in the two-dimensional ferromagnet CrBr
Zhengwei Cai, Song Bao, Zhao-Long Gu +17
Topological magnons are bosonic analogues of topological fermions in electronic systems. They have been studied extensively by theory but rarely realized by experiment. Here, by pe…
Manipulating Hubbard-type Coulomb blockade effect of metallic wires embedded in an insulator
Xing Yang, Huimin Wang, Jing-Jing Xian +11
Correlated states emerge in low-dimensional systems owing to enhanced Coulomb interactions. Elucidating these states requires atomic scale characterization and delicate control cap…
Fractionalized Spin Excitations in the Edge Ferromagnetic State of Graphene: Signature of the Ferromagnetic Luttinger Liquid
Zhao-Yang Dong, Wei Wang, Zhao-Long Gu +2
The elementary excitations from the conventional magnetic ordered states, such as ferromagnets and antiferromagnets, are magnons. Here, we elaborate a case where the well-defined m…
Itinerant topological magnons in Haldane Hubbard model with a nearly-flat electron band
Zhao-Long Gu, Zhao-Yang Dong, Shun-Li Yu +1
We elaborate the first theoretical realization of two dimensional itinerant topological magnons, based on the quarter filled Haldane-Hubbard model with a nearly-flat electron band.…
Ferromagnetism and spin excitations in topological Hubbard models with a flatband
Xiao-Fei Su, Zhao-Long Gu, Zhao-Yang Dong +2
We study the spin-1 excitation spectra of the flatband ferromagnetic phases in interacting topological insulators. As a paradigm, we consider a quarter filled square lattice Hubbar…
Topological Magnons in a One-dimensional Itinerant Flatband Ferromagnet
Xiao-Fei Su, Zhao-Long Gu, Zhao-Yang Dong +1
Different from previous scenarios that topological magnons emerge in local spin models, we propose an alternative that itinerant electron magnets can host topological magnons. A on…
Sub-system fidelity for ground states in one dimensional interacting systems
Jin-Guo Liu, Zhao-Long Gu, Jian-Xin Li +1
We propose to utilize the sub-system fidelity (SSF), defined by comparing a pair of reduced density matrices derived from the degenerate ground states, to identify and/or character…
Phase diagram and topological phases in the triangular lattice Kitaev-Hubbard model
Kai Li, Shun-Li Yu, Zhao-Long Gu +1
We study the half-filled Hubbard model on the triangular lattice with spin-dependent Kitaev-like hopping. Using the variational cluster approach, we identify five phases: a metalli…
Quantum cluster approach to the topological invariants in correlated Chern insulators
Zhao-Long Gu, Kai Li, Jian-Xin Li
We detect the topological properties of Chern insulators with strong Coulomb interactions by use of cluster perturbation theory and variational cluster approach. The common scheme…