Persistent spin current in anisotropic spin ring
نویسندگان
چکیده
The persistent spin current in an 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. A peak of spin current occurs at the maximum value of the ground-state energy. r 2006 Published by Elsevier B.V. PACS: 75.10.Jm; 75.10.Pq; 72.25. b
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تاریخ انتشار 2006