Publications (12)
Magnetic-field tuned anisotropic quantum phase transition in the distorted kagome antiferromagnet Nd3BWO9
Fangyuan song, Han Ge, Andi Liu +8
Rare-earth (RE) kagome-lattice magnets offer an excellent platform to discover the novel magnetic phase as well as quantum phase transition tuned by non-thermal control parameters,…
Magnetic structure and Ising-like antiferromagnetism in the bilayer triangular lattice compound NdZnPO
Han Ge, Tiantian Li, S. E. Nikitin +14
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 detai…
Continuum of spin excitations in an ordered magnet
Jieming Sheng, Le Wang, Wenrui Jiang +9
Continuum of spin excitations observed in inelastic neutron scattering experiments are often considered as a strong evidence of quantum spin liquid formation. When quantum spin liq…
Quasi One-Dimensional Ising-like Antiferromagnetism in the Rare-earth Perovskite Oxide TbScO
Nan Zhao, Jieming Sheng, Jinchen Wang +13
The rare-earth perovskite TbScO has been widely used as a substrate for the growth of epitaxial ferroelectric and multiferroic thin films, while its detailed low-temperature ma…
Magnetic phase diagram and multiple field-induced states in the intermetallic triangular-lattice antiferromagnet NdAuAlGe with Ising-like spins
Mengru Cong, Han Ge, Lei Zhang +12
Geometrical frustration and the enhancement of strong quantum fluctuations in two-dimensional triangular antiferromagnets can lead to various intriguing phenomena. Here, we studied…
Direct Raman observation of the quantum metric in a quantum magnet
Chao-Fan Wang, Han Ge, Jun-Yang Chen +4
The quantum geometric tensor (QGT) unifies the Berry curvature (its imaginary part) and the quantum metric (its real part), yet Raman studies of chiral phonons have so far accessed…
A family of rare-earth Quasi-One-Dimensional spin-chain compounds K2RENb5O15 (RE=Ce,Pr,Nd,Sm,Gd-Ho) with large interchain distance
Qingyuan Zeng, Han Ge, Maofeng Wu +13
One-dimensional spin chain systems have received special attention to discover the novel magnetic ground states and emergent phenomena, while the magnetic studies on rare-earth (RE…
Bose-Einstein condensation of a two-magnon bound state in a spin-one triangular lattice
Jieming Sheng, Jia-Wei Mei, Le Wang +31
In ordered magnets, the elementary excitations are spin waves (magnons), which obey Bose-Einstein statistics. Similarly to Cooper pairs in superconductors, magnons can be paired in…
Unraveling structural, electronic, and magnetic ambiguities in Pb1-δCrO3 with an insulating charge-transfer band structure
Jian Chen, Guozhu Song, Han Ge +4
As a recently-identified Mott system, PbCrO3 remains largely unexplored, especially for its band structure, leading to many contentious issues on its structural, electronic, and ma…
Ising Supercriticality and Universal Magnetocalorics in Spiral Antiferromagnet NdBWO
Xinyang Liu, Enze Lv, Xueling Cui +8
The celebrated analogy between the pressure-temperature phase diagram of a liquid-gas system and the field-temperature phase diagram of a ferromagnet has long been a cornerstone fo…
Berezinskii-Kosterlitz-Thouless region and magnetization plateaus in easy-axis triangular weak-dimer antiferromagnet KCo(SeO)
Ying Fu, Han Ge, Jian Chen +11
We investigate the magnetic phase diagram of the bilayer triangular antiferromagnet KCo(SeO), revealing a rich interplay among geometric frustration, bilayer coupli…
Dzyaloshinskii-Moriya anisotropy effect on field-induced magnon condensation in kagome antiferromagnet
Ying Fu, Jian Chen, Jieming Sheng +11
We performed a comprehensive electron spin resonance, magnetization and heat capacity study on the field-induced magnetic phase transitions in the kagome antiferromagnet $α-Cu_3Mg…