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7 papers · 2 filters
SU() spin-wave theory: Application to spin-orbital Mott insulators
Zhao-Yang Dong, Wei Wang, Jian-Xin Li
We present the application of the SU() () spin-wave theory to spin-orbital Mott insulators whose ground states exhibit magnetic orders. When taking both the spin and orbita…
Discovery of coexisting Dirac and triply degenerate magnons in a three-dimensional antiferromagnet
Song Bao, Jinghui Wang, Wei Wang +11
Topological magnons are emergent quantum spin excitations featured by magnon bands crossing linearly at the points dubbed nodes, analogous to fermions in topological electronic sys…
Ultralow-temperature thermal conductivity of the Kitaev honeycomb magnet -RuCl across the field-induced phase transition
Y. J. Yu, Y. Xu, K. J. Ran +5
Recently, there have been increasingly hot debates on whether there exists a quantum spin liquid in the Kitaev honeycomb magnet -RuCl in high magnetic field. To investigate…
Spin-glass ground state in a triangular-lattice compound YbZnGaO
Zhen Ma, Jinghui Wang, Zhao-Yang Dong +19
We report on comprehensive results identifying the ground state of a triangular-lattice structured YbZnGaO to be spin glass, including no long-range magnetic order, prominent b…
Antiferromagnetic magnons from fractionalized excitations
Rui Wang, Baigeng Wang, T. A. Sedrakyan
We develop an approach to describe antiferromagnetic magnons on a bipartite lattice supporting the Néel state using fractionalized degrees of freedom typically inherent to quantum…
Gapless Spin Excitations in the Field-Induced Quantum Spin Liquid Phase of alpha-RuCl3
Jiacheng Zheng, Kejing Ran, Tianrun Li +7
-RuCl is a leading candidate material for theobservation of physics related to the Kitaev quantum spin liquid (QSL). By combined susceptibility, specific-heat, and nuclear-m…