Persistent spin current in anisotropic spin ring
arXiv:cond-mat/0505547 · doi:10.1016/j.physe.2006.01.012
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.
11 pages,6 figures
References in corpus (10)
- Universal Intrinsic Spin-Hall Effect
- Dissipationless Quantum Spin Current at Room Temperature
- Spin current and polarization in impure 2D electron systems with spin-orbit coupling
- SU(2) Non-Abelian Holonomy and Dissipationless Spin Current in Semiconductors
- Persistent current in ballistic mesoscopic rings with Rashba spin-orbit coupling
- Persistent spin currents in mesoscopic Heisenberg rings
- Persistent spin currents in mesoscopic Haldane gap spin rings
- Persistent Currents in Small, Imperfect Hubbard Rings
- One-dimensional spin-1/2 Heisenberg antiferromagnet in a weak external magnetic field
- An exactly solvable model of the persistent currents in presence of hard-core interaction in a one dimensional mesoscopic ring