Observation of the Little-Parks Oscillations in a System of Asymmetric Superconducting Rings - Condensed Matter > SuperconductivityReportar como inadecuado




Observation of the Little-Parks Oscillations in a System of Asymmetric Superconducting Rings - Condensed Matter > Superconductivity - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: Little-Parks oscillations are observed in a system of 110 series-connectedaluminum rings 2000 nm in diameter with the use of measuring currents from 10nA to 1000 nA. The measurements show that the amplitude and character of theoscillations are independent of the relation between the measuring current andthe amplitude of the persistent current. By using asymmetric rings, it isdemonstrated that the persistent current has clockwise or contra-clockwisedirection. This means that the total current in one of the semi-rings may bedirected against the electric field at measurement of the Little-Parksoscillations. The measurements at zero and low measuring current have revealedthat the persistent current, like the conventional circulating current, causesa potential difference on the semi-rings with different cross sections in spiteof the absence of the Faraday-s voltage.



Autor: A. A. Burlakov, V. L. Gurtovoi, S. V. Dubonos, A. V. Nikulov, V. A. Tulin

Fuente: https://arxiv.org/







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