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Floquet states and persistent currents transitions in a mesoscopic ring

Published in Physical Review. B, Condensed Matter. 2002, vol. 66, no. 24, p. 245321.1-245321.5
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 effectCondensed matter
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MOSKALETS, Mykhaylo, BUTTIKER, Markus. Floquet states and persistent currents transitions in a mesoscopic ring. In: Physical Review. B, Condensed Matter, 2002, vol. 66, n° 24, p. 245321.1-245321.5. https://archive-ouverte.unige.ch/unige:4248

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Deposited on : 2009-11-30

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