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Persistent currents in mesoscopic rings: A stochastic model

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Abstract

A stochastic model, proposed first by Landauer and Büttiker to explain the phenomenon of persistent currents in submicrometer normal metal rings, is developed quantitatively by determining the relevant relaxation time scales. The current excited by a periodically modulated magnetic field threading the ring is computed as the sum of two clear-cut components: a persistent current and a driven current. The latter component provides a notable example of astochastic resonance mechanism in solid-state physics.

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Authors and Affiliations

  1. Dipartimento di Fisica, Università di Perugia, I-06100, Perugia, Italy

    F. Marchesoni

  2. Istituto Nazionale di Fisica Nucleare, Università di Perugia, I-06100, Perugia, Italy

    F. Marchesoni

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  1. F. Marchesoni
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Marchesoni, F. Persistent currents in mesoscopic rings: A stochastic model. J Stat Phys 70, 247–256 (1993). https://doi.org/10.1007/BF01053966

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  • DOI: https://doi.org/10.1007/BF01053966

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