232 citations · 743 across the 17 of their papers we have counts for
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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…
Magnon Damping as a Probe of Kondo Coupling in Magnetically Ordered Systems
Song Bao, Junsen Wang, Shin-ichiro Yano +13
In -electron systems, there can also be intricate interplay between Kondo coupling and magnetic interactions as that in -electron systems, but the underlying mechanism remain…
Spectrum of the hole excitation in spin-orbit Mott insulator NaIrO
Wei Wang, Zhao-Yang Dong, Shun-Li Yu +1
We study the motion of a hole with internal degrees of freedom, introduced to the zigzag magnetic ground state of NaIrO, by using the self-consistent Born approximation. We…
Evidence for strong correlations at finite temperatures in the dimerized magnet NaCuTeO
Yanyan Shangguan, Song Bao, Zhao-Yang Dong +12
Dimerized magnets forming alternating Heisenberg chains exhibit quantum coherence and entanglement and thus can find potential applications in quantum information and computation.…
Neutron spectroscopy evidence on the dual nature of magnetic excitations in a van der Waals metallic ferromagnet FeGeTe
Song Bao, Wei Wang, Yanyan Shangguan +12
In the local or itinerant extreme, magnetic excitations can be described by the Heisenberg model which treats electron spins as localized moments, or by the itinerant-electron mode…
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…
Disorder-induced spin-liquid-like behavior in kagome-lattice compounds
Zhen Ma, Zhao-Yang Dong, Si Wu +14
Quantum spin liquids (QSLs) are an exotic state of matter that is subject to extensive research. However, the relationship between the ubiquitous disorder and the QSL behaviors is…
Comprehensive study of the global phase diagram in the triangular -- model
Shi Wang, Zhongyuan Qi, Bin Xi +3
The celebrated Kitaev honeycomb model provides an analytically tractable example with an exact quantum spin liquid ground state. While in real materials, other types of interaction…
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…
Spectral properties of the square-lattice antiferromagnetic J1-J2 Heisenberg model: confinement and deconfinement of spinons
Shun-Li Yu, Wei Wang, Zhao-Yang Dong +2
Based on the mapping between spin operators and hard-core bosons, we extend the cluster perturbation theory to spin systems and study the whole excitation spectrum of the a…
Dynamics of a single hole in the Heisenberg-Kitaev model: a self-consistent Born approximation study
Bin-Bin Wang, Wei Wang, Shun-Li Yu +1
The magnetic properties of 4d and 5d transition-metal insulating compounds with the honeycomb structure are believed to be described by the Heisenberg-Kitaev model, which contains…
Discovery of coexisting Dirac and triply degenerate magnons in a three-dimensional antiferromagnet
Song Bao, Jinghui Wang, Wei Wang +11
Topological magnons are emergent quantum spin excitations featured by magnon bands crossing linearly at the points dubbed nodes, analogous to fermions in topological electronic sys…
Spin-wave excitations evidencing the Kitaev interaction in single crystalline -RuCl
Kejing Ran, Jinghui Wang, Wei Wang +13
Kitaev interactions underlying a quantum spin liquid have been long sought, but experimental data from which their strengths can be determined directly is still lacking. Here, by c…
Theoretical investigation of the magnetic dynamics in -RuCl
Wei Wang, Zhao-Yang Dong, Shun-Li Yu +1
We study the spin-wave excitations in -RuCl by the spin-wave theory. Starting from the five-orbital Hubbard model and the perturbation theory, we derive an effective isospin…