Asymmetric voltage noise in superconducting tunnel junctions with the electromagnetic environment

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10127480" target="_blank" >RIV/00216208:11320/12:10127480 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/0031-8949/2012/T151/014023" target="_blank" >http://dx.doi.org/10.1088/0031-8949/2012/T151/014023</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0031-8949/2012/T151/014023" target="_blank" >10.1088/0031-8949/2012/T151/014023</a>

Result language

angličtina

Original language name

Asymmetric voltage noise in superconducting tunnel junctions with the electromagnetic environment

Original language description

We investigate theoretically the V-I characteristics and voltage noise of superconducting tunnel junctions with a small critical current via the matrix-continued-fraction method. Special attention is paid to the large hysteresis in the V-I characteristics and to the voltage-noise anomaly observed in preliminary experiments. The current dependence of the voltage noise shows a strong asymmetry between the forward and the backward current ramping and a discontinuous change in the noise close to its measured maximum occurring at the switching current. We show that both the large hysteresis and the voltage noise anomaly in this current-biased setup are a consequence of the influence of the junction's electromagnetic environment. Typically, the voltage-noisedependence on the junction current parametrized by the external drive contains a loop that is, however, not observed experimentally because of the implementation of the junction-current ramp. Skipping a part of the loop is responsible fo

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GCP204%2F11%2FJ042" target="_blank" >GCP204/11/J042: Supercurrent and ac-Josephson effect in unconventional nanoscopic junctions</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physica Scripta

ISSN

0031-8949

e-ISSN

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Volume of the periodical

T151

Issue of the periodical within the volume

listopad

Country of publishing house

SE - SWEDEN

Number of pages

5

Pages from-to

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UT code for WoS article

000311961700024

EID of the result in the Scopus database

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