The properties of single submicron high-temperature superconductor !HTS" rings are investigated. The Little-Parks effect is observed and is accompanied by an anomalous behavior of the magnetic dependence of the resistance, which we ascribe to nonuniform vorticity !superfluid angular momentum" within the ring arms. This effect is linked to the peculiar HTS relationship between the values of the coherence length and the London penetration depth.
Little-Parks effect in single YBaCuO sub-micron rings
TAFURI, Francesco
2010
Abstract
The properties of single submicron high-temperature superconductor !HTS" rings are investigated. The Little-Parks effect is observed and is accompanied by an anomalous behavior of the magnetic dependence of the resistance, which we ascribe to nonuniform vorticity !superfluid angular momentum" within the ring arms. This effect is linked to the peculiar HTS relationship between the values of the coherence length and the London penetration depth.File in questo prodotto:
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