Yanyan Shangguan

activity

20202026

most citedEvidence of the Berezinskii-Kosterlitz-Thouless Phase in a Frustrated Magnet

74 citations · 376 across the 24 of their papers we have counts for

collaborators

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21 papers · 1 filter

cond-mat.str-el2026

Negligible Kitaev interaction in the van der Waals antiferromagnet NiBr $_{2}$ revealed by neutron spectroscopy

Hao Xu, Shufan Cheng, Yanyan Shangguan +9

Using time-of-flight neutron spectroscopy, we have mapped out the magnetic excitations in the van der Waals antiferromagnet NiBr $_{2}$ over a broad range of energies and momenta. The…

cond-mat.str-el2026

Sizable Ligand-Mediated Bond-Dependent Interactions in a Spin-1 Triangular Antiferromagnet NiI $_{2}$

Hao Xu, Weiqin Zhu, Shufan Cheng +11

The bond-dependent anisotropic Kitaev interactions are the key for the Kitaev model, which has attracted intense interest for its potential to host quantum-spin-liquid states and f…

cond-mat.str-el2026

Cascade of magnetic-field-induced quantum spin states in a spin-1 honeycomb magnet

Kaixin Tang, Zhao-Yang Dong, Yanyan Shangguan +10

Quantum fluctuations endow spin systems with surprisingly enriched magnetic phase diagrams. In frustrated magnets, strong quantum fluctuations boosted by either geometrical incompa…

cond-mat.str-el2026★ 3 cited

Magnetic Signature of Chiral Phonons Revealed by Neutron Spectroscopy in Ferrimagnetic Fe $_{1.75}$ Zn $_{0.25}$ Mo $_{3}$ O $_{8}$

Song Bao, Junbo Liao, Zhentao Huang +13

Lattice vibrations can carry angular momentum and magnetic moments under broken inversion or time-reversal symmetry, forming so-called chiral phonons. While such excitations have b…

cond-mat.str-el2025

Magnetic excitations in biaxial-strain detwinned $α$ -RuCl $_{3}$

Yi Li, Yanyan Shangguan, Xinzhe Wang +10

The honeycomb magnet $α$ -RuCl $_{3}$ has been a leading candidate for realizing the Kitaev quantum spin liquid (QSL), but its intrinsic spin dynamics have remained obscured by cryst…

cond-mat.str-el2025★ 1 cited

Disorder-induced spin excitation continuum and spin-glass ground state in the inverse spinel CuGa $_{2}$ O $_{4}$

Zhentao Huang, Zhijun Xu, Shuaiwei Li +18

Spinel-structured compounds serve as prototypical examples of highly frustrated systems, and are promising candidates for realizing the long-sought quantum spin liquid (QSL) state.…

cond-mat.str-el2025★ 1 cited

Magnetic Interactions in the Polar Ferrimagnet with a Bipartite Structure

Junbo Liao, Zhentao Huang, Bo Zhang +8

The polar magnets A $_{2}$ Mo $_{3}$ O $_{8}$ (A=Fe, Mn, Co, and Ni) feature a bipartite structure, where the magnetic A $^{2 +}$ ions occupy two different sites with octahedral and tetrahedral…

cond-mat.str-el2024★ 4 cited

Spin and lattice dynamics of a van der Waals antiferromagnet MnPSe $_{3}$

Junbo Liao, Zhentao Huang, Yanyan Shangguan +7

Antiferromagnetic van der Waals family $M P X_{3} (M = Fe, Mn, Co, and Ni; X = S and Se)$ have attracted significant research attention due to th…

cond-mat.str-el2024★ 3 cited

Low-energy spin dynamics in a Kitaev material Na3Ni2BiO6 investigated by NMR

Xinyu Shi, Yi Cui, Yanyan Shangguan +11

We performed 23Na NMR and magnetization measurements on an S = 1, quasi-2D honeycomb lattice antiferromagnet Na3Ni2BiO6. A large positive Curie-Weiss constant of 22.9 K is observed…

cond-mat.str-el2023★ 37 cited

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…

cond-mat.str-el2023★ 39 cited

Observation of a 1/3 Magnetisation Plateau Phase as Evidence for the Kitaev Interaction in a Honeycomb-Lattice Antiferromagnet

Yanyan Shangguan, Song Bao, Zhao-Yang Dong +24

Fractional magnetisation plateaus, in which the magnetisation is pinned at a fraction of its saturated value within a range of external magnetic field, are spectacular macroscopic…

cond-mat.str-el2023★ 1 cited

Magnon Damping as a Probe of Kondo Coupling in Magnetically Ordered Systems

Song Bao, Junsen Wang, Shin-ichiro Yano +13

In $d$ -electron systems, there can also be intricate interplay between Kondo coupling and magnetic interactions as that in $f$ -electron systems, but the underlying mechanism remain…

cond-mat.str-el2023★ 8 cited

Suppression of the antiferromagnetic order by Zn doping in a possible Kitaev material Na $_{2}$ Co $_{2}$ TeO $_{6}$

Zhongtuo Fu, Ruokai Xu, Song Bao +13

Very recently, a 3 $d$ based honeycomb cobaltate Na $_{2}$ Co $_{2}$ TeO $_{6}$ has garnered tremendous attention due to the proposed proximity to the Kitaev spin-liquid state as its 4 $d$ /5 $d$ …

cond-mat.str-el2022★ 12 cited

Neutron spectroscopy evidence for a possible magnetic-field-induced gapless quantum-spin-liquid phase in a Kitaev material $α$ -RuCl $_{3}$

Xiaoxue Zhao, Kejing Ran, Jinghui Wang +15

As one of the most promising Kitaev quantum-spin-liquid (QSL) candidates, $α$ -RuCl $_{3}$ has received a great amount of attention. However, its ground state exhibits a long-range zig…

cond-mat.str-el2022★ 4 cited

Evidence for strong correlations at finite temperatures in the dimerized magnet Na $_{2}$ Cu $_{2}$ TeO $_{6}$

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.…

cond-mat.str-el2022★ 21 cited

Disorder-induced broadening of the spin waves in a triangular-lattice quantum-spin-liquid candidate YbZnGaO $_{4}$

Zhen Ma, Zhao-Yang Dong, Jinghui Wang +15

Disorder is important in the study of quantum spin liquids, but its role on the spin dynamics remains elusive. Here, we explore the disorder effect by investigating the magnetic-fi…

cond-mat.str-el2022★ 34 cited

Neutron spectroscopy evidence on the dual nature of magnetic excitations in a van der Waals metallic ferromagnet Fe $_{2.72}$ GeTe $_{2}$

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…

cond-mat.str-el2021★ 72 cited

Topological magnon insulator spin excitations in the two-dimensional ferromagnet CrBr $_{3}$

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…

cond-mat.str-el2020★ 22 cited

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…

cond-mat.str-el2020★ 74 cited

Evidence of the Berezinskii-Kosterlitz-Thouless Phase in a Frustrated Magnet

Ze Hu, Zhen Ma, Yuan-Da Liao +10

The Berezinskii-Kosterlitz-Thouless (BKT) mechanism, building upon proliferation of topological defects in 2D systems, is the first example of phase transition beyond the Landau-Gi…

cond-mat.str-el2020★ 27 cited

Evidence for magnon-phonon coupling in the topological magnet Cu $_{3}$ TeO $_{6}$

Song Bao, Zhengwei Cai, Wenda Si +11

We perform thermodynamic and inelastic neutron scattering (INS) measurements to study the lattice dynamics (phonons) of a cubic collinear antiferromagnet Cu $_{3}$ TeO $_{6}$ which hosts…

Negligible Kitaev interaction in the van der Waals antiferromagnet NiBr2​ revealed by neutron spectroscopy

Sizable Ligand-Mediated Bond-Dependent Interactions in a Spin-1 Triangular Antiferromagnet NiI2​

Cascade of magnetic-field-induced quantum spin states in a spin-1 honeycomb magnet

Magnetic Signature of Chiral Phonons Revealed by Neutron Spectroscopy in Ferrimagnetic Fe1.75​Zn0.25​Mo3​O8​

Magnetic excitations in biaxial-strain detwinned α-RuCl3​

Disorder-induced spin excitation continuum and spin-glass ground state in the inverse spinel CuGa2​O4​

Magnetic Interactions in the Polar Ferrimagnet with a Bipartite Structure

Spin and lattice dynamics of a van der Waals antiferromagnet MnPSe3​

Low-energy spin dynamics in a Kitaev material Na3Ni2BiO6 investigated by NMR

Direct observation of topological magnon polarons in a multiferroic material

Observation of a 1/3 Magnetisation Plateau Phase as Evidence for the Kitaev Interaction in a Honeycomb-Lattice Antiferromagnet

Magnon Damping as a Probe of Kondo Coupling in Magnetically Ordered Systems

Suppression of the antiferromagnetic order by Zn doping in a possible Kitaev material Na2​Co2​TeO6​

Neutron spectroscopy evidence for a possible magnetic-field-induced gapless quantum-spin-liquid phase in a Kitaev material α-RuCl3​

Evidence for strong correlations at finite temperatures in the dimerized magnet Na2​Cu2​TeO6​

Disorder-induced broadening of the spin waves in a triangular-lattice quantum-spin-liquid candidate YbZnGaO4​

Neutron spectroscopy evidence on the dual nature of magnetic excitations in a van der Waals metallic ferromagnet Fe2.72​GeTe2​

Topological magnon insulator spin excitations in the two-dimensional ferromagnet CrBr3​

Disorder-induced spin-liquid-like behavior in kagome-lattice compounds

Evidence of the Berezinskii-Kosterlitz-Thouless Phase in a Frustrated Magnet

Evidence for magnon-phonon coupling in the topological magnet Cu3​TeO6​

Negligible Kitaev interaction in the van der Waals antiferromagnet NiBr $_{2}$ revealed by neutron spectroscopy

Sizable Ligand-Mediated Bond-Dependent Interactions in a Spin-1 Triangular Antiferromagnet NiI $_{2}$

Magnetic Signature of Chiral Phonons Revealed by Neutron Spectroscopy in Ferrimagnetic Fe $_{1.75}$ Zn $_{0.25}$ Mo $_{3}$ O $_{8}$

Magnetic excitations in biaxial-strain detwinned $α$ -RuCl $_{3}$

Disorder-induced spin excitation continuum and spin-glass ground state in the inverse spinel CuGa $_{2}$ O $_{4}$

Spin and lattice dynamics of a van der Waals antiferromagnet MnPSe $_{3}$

Suppression of the antiferromagnetic order by Zn doping in a possible Kitaev material Na $_{2}$ Co $_{2}$ TeO $_{6}$

Neutron spectroscopy evidence for a possible magnetic-field-induced gapless quantum-spin-liquid phase in a Kitaev material $α$ -RuCl $_{3}$

Evidence for strong correlations at finite temperatures in the dimerized magnet Na $_{2}$ Cu $_{2}$ TeO $_{6}$

Disorder-induced broadening of the spin waves in a triangular-lattice quantum-spin-liquid candidate YbZnGaO $_{4}$

Neutron spectroscopy evidence on the dual nature of magnetic excitations in a van der Waals metallic ferromagnet Fe $_{2.72}$ GeTe $_{2}$

Topological magnon insulator spin excitations in the two-dimensional ferromagnet CrBr $_{3}$

Evidence for magnon-phonon coupling in the topological magnet Cu $_{3}$ TeO $_{6}$