Weiqiang Yu

activity

20122026

most citedMermin-Wagner physics, (H,T) phase diagram, and candidate quantum spin-liquid phase in the spin-1/2 triangular-lattice antiferromagnet Ba8CoNb6O24

35 citations · 110 across the 17 of their papers we have counts for

collaborators

17 papers

cond-mat.str-el2026

NMR evidence of pressure-induced structural transition and enhanced spin fluctuations up to 14~GPa in SrCu $_{2}$ (BO $_{3}$ ) $_{2}$

Zhanlong Wu, Kefan Du, Shuo Li +10

The Shastry-Sutherland compound SrCu $_{2}$ (BO $_{3}$ ) $_{2}$ has attracted considerable interest as a platform for exploring quantum phases and quantum phase transitions driven by magnetic…

cond-mat.str-el2026

Spiral spin liquid resilient to quantization in the frustrated honeycomb antiferromagnet GdZnPO

Xun Chen, Rui Bian, Yuqian Zhao +4

Frustrated magnets host strong quantum fluctuations that can suppress conventional magnetic order and give rise to exotic quantum phases such as spin liquids. In some cases, howeve…

cond-mat.str-el2026

Cascade of Spin Liquids in a Bilayer Triangular-lattice Antiferromagnet Rb_2Co_2(SeO_3)_3

Xiaoyu Xu, Yunlong Wang, Xuejuan Gui +20

In frustrated Ising magnets, classical spin liquids (CSLs) with macroscopic ground-state degeneracy can survive against conventional magnetic order, as exemplified by systems on tr…

cond-mat.str-el2025★ 1 cited

Single-layer framework of variational tensor network states

Hongyu Chen, Yangfeng Fu, Weiqiang Yu +2

We propose a single-layer tensor network framework for the variational determination of ground states in two-dimensional quantum lattice models. By combining the nested tensor netw…

cond-mat.str-el2025

Spinons, solitons and random singlets in the spin-chain compound copper benzoate

Ying Chen, Guijing Duan, Yuejiu Zhao +15

The $S = 1/2$ antiferromagnetic Heisenberg chain is a paradigmatic quantum system hosting exotic excitations such as spinons and solitons, and forming random singlet state in the pre…

cond-mat.str-el2025★ 2 cited

Spin-supersolidity induced quantum criticality and magnetocaloric effect in the triangular-lattice antiferromagnet Rb $_{2}$ Co(SeO $_{3}$ ) $_{2}$

Yi Cui, Zhanlong Wu, Zhongcen Sun +12

We performed high-field magnetization, magnetocaloric effect (MCE), and NMR measurements on the Ising triangular-lattice antiferromagnet Rb $_{2}$ Co(SeO $_{3}$ ) $_{2}$ . The observations of…

cond-mat.str-el2025★ 9 cited

Deconfined Quantum Critical Point: A Review of Progress

Yi Cui, Rong Yu, Weiqiang Yu

Deconfined quantum critical points (DQCPs) have been proposed as a class of continuous quantum phase transitions occurring between two ordered phases with distinct symmetry-breakin…

cond-mat.str-el2025★ 8 cited

NMR study of supersolid phases in the triangular-lattice antiferromagnet Na2BaCo(PO4)2

Xiaoyu Xu, Zhanlong Wu, Ying Chen +10

We report ultra-low-temperature $^{23}$ Na NMR measurements on the Ising triangular lattice antiferromagnet Na $_{2}$ BaCo(PO $_{4}$ ) $_{2}$ , which precisely resolve the phase diagram under m…

cond-mat.str-el2024

Haldane phase, field-induced magnetic ordering and Tomonaga-Luttinger liquid behavior in a spin-one chain compound NiC $_{2}$ O $_{4}$ $\cdot$ 2NH $_{3}$

Shuo Li, Zhanlong Wu, Yanhong Wang +12

We performed single-crystal magnetic susceptibility and $^{1}$ H NMR measurements on a quasi-1D, spin-1 antiferromagnet NiC $_{2}$ O $_{4}$ $\cdot$ 2NH $_{3}$ , with temperature down to 100 mK and…

cond-mat.str-el2024

Two Plaquette-Singlet Phases and Emergent SO(5) Deconfined Quantum Criticality in SrCu2(BO3)2

Yi Cui, Kefan Du, Zhanlong Wu +15

The deconfined quantum critical point (DQCP) has become a central open concept in the physics of quantum matter, and its proposed presence in the Shastry-Sutherland model was follo…

cond-mat.str-el2024

Spin excitations of the Shastry-Sutherland model -- altermagnetism and deconfined quantum criticality

Hongyu Chen, Guijing Duan, Changle Liu +4

Frustrated quantum magnets can host a variety of exotic spin excitations, including fractionalized spin excitations coupled to emergent gauge fields at deconfined quantum critical…

cond-mat.str-el2024★ 16 cited

Molecular intercalation in the van der Waals antiferromagnets FePS3 and NiPS3

Cong Li, Ze Hu, Xiaofei Hou +13

We have performed electrochemical treatment of the van der Waals antiferromagnetic materials FePS $_{3}$ and NiPS $_{3}$ with the ionic liquid EMIM-BF $_{4}$ , achieving significant molecula…

cond-mat.str-el2024★ 10 cited

NMR evidence of spinon localization in kagome antiferromagnet YCu $_{3}$ (OH) $_{6}$ Br $_{2}$ [Br $_{1 - x}$ (OH) $_{x}$ ]

Shuo Li, Yi Cui, Zhenyuan Zeng +9

We performed nuclear magnetic resonance studies on a kagome antiferromagnet YCu $_{3}$ (OH) $_{6}$ Br $_{2}$ [Br $_{1 - x}$ (OH) $_{x}$ ]. No significant NMR spectral broadening is found in the Br c…

cond-mat.str-el2024★ 1 cited

Semiclassical approach to spin dynamics of a ferromagnetic S=1 chain

Chengchen Li, Yi Cui, Weiqiang Yu +1

Motivated by recent experimental progress in the quasi-one-dimensional quantum magnet NiNb $_{2}$ O $_{6}$ , we study the spin dynamics of an S=1 ferromagnetic Heisenberg chain with single…

cond-mat.str-el2024★ 14 cited

Field-induced phase transitions and quantum criticality in a honeycomb antiferromagnet Na3Co2SbO6

Ze Hu, Yue Chen, Yi Cui +10

We performed 23Na NMR measurements on a single-domain crystal of the Kitaev material Na3Co2SbO6, with magnetic field applied along the crystalline a axis. A positive Curie-Weiss co…

cond-mat.str-el2017★ 35 cited

Mermin-Wagner physics, (H,T) phase diagram, and candidate quantum spin-liquid phase in the spin-1/2 triangular-lattice antiferromagnet Ba8CoNb6O24

Y. Cui, J. Dai, P. Zhou +11

Ba $_{8}$ CoNb $_{6}$ O $_{24}$ presents a system whose Co $^{2 +}$ ions have an effective spin 1/2 and construct a regular triangular-lattice antiferromagnet (TLAFM) with a very large interl…

cond-mat.supr-con2012★ 14 cited

Quenched Fe Moment in the Collapsed Tetragonal Phase of Ca $_{1 - x}$ Pr $_{x}$ Fe $_{2}$ As $_{2}$

Long Ma, G. F. Ji, J. Dai +3

We report $^{75}$ As NMR studies on single crystals of rare-earth doped iron pnictides superconductor Ca $_{1 - x}$ Pr $_{x}$ Fe $_{2}$ As $_{2}$ ( $x$ =0.075 and 0.15). The $^{75}$ As spectra…

NMR evidence of pressure-induced structural transition and enhanced spin fluctuations up to 14~GPa in SrCu2​(BO3​)2​

Spiral spin liquid resilient to quantization in the frustrated honeycomb antiferromagnet GdZnPO

Cascade of Spin Liquids in a Bilayer Triangular-lattice Antiferromagnet Rb_2Co_2(SeO_3)_3

Single-layer framework of variational tensor network states

Spinons, solitons and random singlets in the spin-chain compound copper benzoate

Spin-supersolidity induced quantum criticality and magnetocaloric effect in the triangular-lattice antiferromagnet Rb2​Co(SeO3​)2​

Deconfined Quantum Critical Point: A Review of Progress

NMR study of supersolid phases in the triangular-lattice antiferromagnet Na2BaCo(PO4)2

Haldane phase, field-induced magnetic ordering and Tomonaga-Luttinger liquid behavior in a spin-one chain compound NiC2​O4​⋅2NH3​

Two Plaquette-Singlet Phases and Emergent SO(5) Deconfined Quantum Criticality in SrCu2(BO3)2

Spin excitations of the Shastry-Sutherland model -- altermagnetism and deconfined quantum criticality

Molecular intercalation in the van der Waals antiferromagnets FePS3 and NiPS3

NMR evidence of spinon localization in kagome antiferromagnet YCu3​(OH)6​Br2​[Br1−x​(OH)x​]

Semiclassical approach to spin dynamics of a ferromagnetic S=1 chain

Field-induced phase transitions and quantum criticality in a honeycomb antiferromagnet Na3Co2SbO6

Mermin-Wagner physics, (H,T) phase diagram, and candidate quantum spin-liquid phase in the spin-1/2 triangular-lattice antiferromagnet Ba8CoNb6O24

Quenched Fe Moment in the Collapsed Tetragonal Phase of Ca1−x​Prx​Fe2​As2​

NMR evidence of pressure-induced structural transition and enhanced spin fluctuations up to 14~GPa in SrCu $_{2}$ (BO $_{3}$ ) $_{2}$

Spin-supersolidity induced quantum criticality and magnetocaloric effect in the triangular-lattice antiferromagnet Rb $_{2}$ Co(SeO $_{3}$ ) $_{2}$

Haldane phase, field-induced magnetic ordering and Tomonaga-Luttinger liquid behavior in a spin-one chain compound NiC $_{2}$ O $_{4}$ $\cdot$ 2NH $_{3}$

NMR evidence of spinon localization in kagome antiferromagnet YCu $_{3}$ (OH) $_{6}$ Br $_{2}$ [Br $_{1 - x}$ (OH) $_{x}$ ]

Quenched Fe Moment in the Collapsed Tetragonal Phase of Ca $_{1 - x}$ Pr $_{x}$ Fe $_{2}$ As $_{2}$