期刊论文详细信息
Floquet states and persistent-current transitions in a mesoscopic ring | |
Article | |
关键词: QUANTUM-DOT; SCATTERING; SINGLE; TIME; LOOP; | |
DOI : 10.1103/PhysRevB.66.245321 | |
来源: SCIE |
【 摘 要 】
We consider the effect of an oscillating potential on the single-particle spectrum and the time-averaged persistent current of a one-dimensional phase-coherent mesoscopic ring with a magnetic flux. We show that in a ring with an even number of spinless electrons the oscillating potential has a strong effect on the persistent current when the excited side bands are close to the eigenlevels of a pure ring. Resonant enhancement of side bands of the Floquet state generates a sign change of the persistent current.
【 授权许可】
Free