Persistent spin current in anisotropic spin ring
Yin Cheng, You-Quan Li, Bin Chen
TL;DR
This paper investigates how anisotropy in spin coupling influences the persistent spin current in a spin ring subjected to an SU(2) flux, using the Schwinger-boson mean field approach, and analyzes related energies.
Contribution
It introduces the effect of anisotropic spin coupling on persistent spin currents in a spin ring with SU(2) flux, providing new insights into their behavior.
Findings
Anisotropy enhances persistent spin current.
Maximum spin current aligns with peak ground-state energy.
Ground-state energy and excitation gap are characterized.
Abstract
The persistent spin current in anisotropic spin ring penetrated by a SU(2) flux is studied by the Schwinger-boson mean field approach. The anisotropy in spin coupling can facilitate the persistent spin current. Ground-state energy and excitation energy gap are also studied. The peak of spin current occurs at the maximum value of the ground-state energy.
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