Determination of the interactions in confined macroscopic Wigner islands: theory and experiments

P. Galatola, G. Coupier (), M. Saint Jean, J.-B. Fournier and C. Guthmann

The European Physical Journal B: Condensed Matter and Complex Systems, 2006, vol. 50, issue 4, 549-557

Abstract: Macroscopic Wigner islands present an interesting complementary approach to explore the properties of two-dimensional confined particles systems. In this work, we characterize theoretically and experimentally the interaction between their basic components, viz., conducting spheres lying on the bottom electrode of a plane condenser. We show that the interaction energy can be approximately described by a decaying exponential as well as by a modified Bessel function of the second kind. In particular, this implies that the interactions in this system, whose characteristics are easily controllable, are the same as those between vortices in type-II superconductors. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

Keywords: 41.20.Cv Electrostatics; Poisson and Laplace equations, boundary-value problems, 68.65.-k Low-dimensional, mesoscopic, and nanoscale systems: structure and nonelectronic properties, (search for similar items in EconPapers)
Date: 2006
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DOI: 10.1140/epjb/e2006-00183-0

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