Huanpeng Bu

Partially polarized order in the orthogonal Ising Shastry-Sutherland magnet BaNd 2 PdS 5

Anonymous, Qiye Liu, Han Ge, Nan Zhao et autres

cn (code pays fourni par la source)

Entropy landscape and field-tuned thermodynamics of the large-spin Shastry-Sutherland magnet Eu 2 MgSi 2 O 7

Huanpeng Bu, Han Ge, Fangli Li, Lei Xu et autres

We present a comprehensive study of the low-temperature magnetism and field-tuned thermodynamics of the layered Shastry-Sutherland compound Eu2⁢MgSi2⁢O7. Eu2+ ions (4⁢7, = 7/2) form a quasi-two-dimensional orthogonal-dimer network, realizing a large-spin Heisenberg system on a Shastry-Sutherland geometry that is prone to geometric …

cn, hk (code pays fourni par la source)

Emergent quasi-one-dimensional antiferromagnetism in the distorted kagome magnet CePtPb

Fangli Li, Pengfei Liu, Ying Fu, Lei Xu et autres

CePtPb hosts a distorted kagome lattice of Ce3+ ions, providing a clean platform to investigate how reduced local symmetry and strong spin-orbit coupling reshape frustrated magnetism. Magnetization, specific heat, and magnetocaloric effect measurements, combined with a symmetry analysis of the single-ion anisotropy, …

cn, hk, us (code pays fourni par la source)

Magnetic ground state and persistent spin fluctuations in the triangular-lattice antiferromagnet NdZnAl 11 O 19

Yantao Cao, Huanpeng Bu, T. Shiroka, Helen C. Walker et autres

Rare-earth triangular-lattice magnets serve as an excellent platform for investigating exotic quantum magnetic phenomena. Recently, the hexaaluminate ${\mathrm{CeMgAl}}_{11}{\mathrm{O}}_{19}$ has been proposed to host a $U(1)$ Dirac quantum spin liquid state with dominant Ising anisotropy. Here, we report a systematic study of its …

cn, cz, ch (code pays fourni par la source)

Magnetic ground state and persistent spin fluctuations in triangular-lattice antiferromagnet NdZnAl$_{11}$O$_{19}$

Yantao Cao, Huanpeng Bu, T. Shiroka, Helen C. Walker et autres

Rare-earth triangular-lattice magnets serve as an excellent platform for investigating exotic quantum magnetic phenomena. Recently, the hexaaluminate \cmao\ has been proposed to host a $U(1)$ Dirac quantum spin liquid state with dominant Ising anisotropy. Here, we report a systematic study of its …

Dominant Kitaev interaction and field-induced quantum phase transitions in triangular-lattice KCeSe 2

Mingtai Xie, Zheng Zhang, Weizhen Zhuo, Wei Xu et autres

Realizing Kitaev interactions on triangular lattices offers a compelling platform for exploring quantum spin liquid physics beyond the conventional honeycomb-lattice framework. Here, we investigate the triangular-lattice antiferromagnet KCeSe 2 , where multiple probes reveal strong magnetic anisotropy, suggesting significant Kitaev physics. Through …

cn, cz, ch (code pays fourni par la source)

Quantum criticality in the anisotropic spin-chain antiferromagnet Ca 2 CoH 2 ( SeO 3 ) 4

Nan Zhao, Han Ge, Tiantian Li, Fangli Li et autres

The quantum criticality of an XXZ-type spin chain antiferromagnet ${\mathrm{Ca}}_{2}{\mathrm{CoH}}_{2}{({\mathrm{SeO}}_{3})}_{4}$, subjected to an external magnetic field, was investigated through ultralow-temperature specific heat, magnetocaloric effect, and magnetic susceptibility measurements. In the absence of an external magnetic field, the system undergoes an antiferromagnetic phase …

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Magnetic structure and Ising-like antiferromagnetism in the bilayer triangular lattice compound NdZnPO

Han Ge, Tiantian Li, Stanislav E. Nikitin, Nan Zhao et autres

The complex interplay of spin frustration and quantum fluctuations in low-dimensional quantum materials leads to a variety of intriguing phenomena. This research focuses on a detailed analysis of the magnetic behavior exhibited by NdZnPO, a bilayer spin-1/2 triangular lattice antiferromagnet. The investigation …

cn, ch, us, es, fr (code pays fourni par la source)

Synthesis, disorder and Ising anisotropy in a new spin liquid candidate PrMgAl 11 O 19

Yantao Cao, Huanpeng Bu, Zhendong Fu, Jinkui Zhao et autres

Abstract Here we report the successful synthesis of large single crystals of triangular frustrated PrMgAl 11 O 19 using the optical floating zone technique. Single crystal x-ray diffraction (XRD) measurements unveiled the presence of quenched disorder within the mirror plane, specifically ~7% …

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Distinct magnetic ground states in Shastry-Sutherland lattice materials: Pr2Be2GeO7 versus Nd2Be2GeO7

Andi Liu, Fangyuan Song, Han Ge, Huanpeng Bu et autres

The rare-earth (RE) based Shastry-Sutherland lattice (SSL) materials have attracted recent attention for exploring the exotic magnetic phases of $4f$ electrons. Here, we present a comparative study on low-temperature magnetization and specific-heat results of two tetragonal structure compounds ${RE}_{2}\mathrm{B}{\mathrm{e}}_{2}\mathrm{Ge}{\mathrm{O}}_{7}$ ($RE=\mathrm{Pr}$, Nd), where …

cn (code pays fourni par la source)

Magnetic structure and Ising-like antiferromagnetism in the bilayer triangular lattice compound NdZnPO

Han Ge, Tiantian Li, Stanislav E. Nikitin, Nan Zhao et autres

The complex interplay of spin frustration and quantum fluctuations in low-dimensional quantum materials leads to a variety of intriguing phenomena. This research focuses on a detailed analysis of the magnetic behavior exhibited by NdZnPO, a bilayer spin-1/2 triangular lattice antiferromagnet. The investigation …

Ba9RE2(SiO4)6 (RE = Ho–Yb): A Family of Rare-Earth-Based Honeycomb-Lattice Magnets

Andi Liu, Fangyuan Song, Huanpeng Bu, Zhecheng Li et autres

Rare-earth (RE)-based honeycomb-lattice materials with strong spin–orbit coupled J eff = 1/2 moments have attracted great interest as a platform to realize the Kitaev quantum spin liquid (QSL) state. Herein, we report the discovery of a family of RE-based honeycomb-lattice magnets Ba …

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