Persistent Current of a One-Dimensional Wigner Crystal-Ring

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dc.creatorKrive, I. V.
dc.creatorShekhter, R. I.
dc.creatorGirvin, S. M.
dc.creatorJonson, M.
dc.date1994-04-22
dc.date.accessioned2026-07-07T03:07:14Z
dc.date.available2026-07-07T03:07:14Z
dc.descriptionWe calculate the magnetic moment (`persistent current') in a strongly correlated electron system --- a Wigner crystal --- in a one-dimensional ballistic ring. The flux- and temperature dependence of the persistent current is shown to be essentially the same as for a system of non-interacting electrons. In contrast, by incorporating into the ring geometry a tunnel barrier, that pins the Wigner crystal, the current is suppressed and its temperature dependence is drastically changed. The competition between two temperature effects --- a reduced barrier height for macroscopic tunneling and a loss of quantum coherence --- results in a sharp peak in the temperature dependence, which for a rigid Wigner crystal appears at $T\sim 0.5\ \hbar s/L$, ($s$ is the sound velocity of the Wigner crystal, $L$ is the length of the ring).
dc.description13 pages LaTeX v3.14 with RevTeX v3.0, 1 fig available on request APR 93-21
dc.identifierhttps://arxiv.org/abs/cond-mat/9404072
dc.identifierhttp://arxiv.org/abs/cond-mat/9404072
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/27095
dc.subjectCondensed Matter
dc.titlePersistent Current of a One-Dimensional Wigner Crystal-Ring
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