232 citations · 1k across the 33 of their papers we have counts for
6 papers · 1 filter
Defect-induced edge ferromagnetism and fractional spin excitations of the SU(4) -flux Hubbard model on honeycomb lattice
Yang Xie, Cheng-Ping He, Zhao-Yang Dong +1
Recently, a SU(4) -flux Hubbard model on the honeycomb lattice has been proposed to study the spin-orbit excitations of -ZrCl [Phys.~Rev.~Lett. 121.097201~(2017)]. Based…
Confinement and oscillating deconfinement crossover of two-magnon excitations in quantum spin chains quantified by spin entanglement entropy
Zhao-Yang Dong, Jian-Xin Li
We introduce the spin entanglement entropy (EE) to characterize spin excitations. The scalings of EEs are elaborated as , and for the single-magnon st…
Neutron spectroscopy evidence for a possible magnetic-field-induced gapless quantum-spin-liquid phase in a Kitaev material -RuCl
Xiaoxue Zhao, Kejing Ran, Jinghui Wang +15
As one of the most promising Kitaev quantum-spin-liquid (QSL) candidates, -RuCl has received a great amount of attention. However, its ground state exhibits a long-range zig…
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.…
Disorder-induced broadening of the spin waves in a triangular-lattice quantum-spin-liquid candidate YbZnGaO
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…
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…