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arXiv · 1002.2548

Little-Parks effect in single YBaCuO sub-micron rings

Franco Carillo·Gianpaolo Papari·Daniela Stornaiuolo·Detlef Born·Domenico Montemurro·Pasqualantonio Pingue·Fabio Beltram·Francesco Tafuri
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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 non-uniform 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.

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Franco Carillo, Gianpaolo Papari, Daniela Stornaiuolo, Detlef Born, Domenico Montemurro, Pasqualantonio Pingue, Fabio Beltram, Francesco Tafuri. 2010-02-12. Little-Parks effect in single YBaCuO sub-micron rings. https://doi.org/10.1103/physrevb.81.054505

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