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Floquet states and persistent currents transitions in a mesoscopic ring

Published inPhysical review. B, Condensed matter and materials physics, vol. 66, no. 24, p. 245321.1-245321.5
Publication date2002
Abstract

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 eigen levels of a pure ring. Resonant enhancement of side bands of the Floquet state generates a sign change of the persistent current.

Keywords
  • Mesoscopic systems and quantum hall effect
  • Condensed matter
Citation (ISO format)
MOSKALETS, Mykhaylo, BUTTIKER, Markus. Floquet states and persistent currents transitions in a mesoscopic ring. In: Physical review. B, Condensed matter and materials physics, 2002, vol. 66, n° 24, p. 245321.1–245321.5. doi: 10.1103/PhysRevB.66.245321
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ISSN of the journal1098-0121
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