Magnetic-field-induced stabilization of nonequillibrium superconductivity in a normal-metal/insulator/superconductor junction
Loading...
Access rights
openAccess
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Date
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
4
Series
Physical Review B, Volume 84, issue 22, pp. 1-4
Abstract
A small magnetic field is found to enhance relaxation processes in a superconductor, thus stabilizing superconductivity in nonequilibrium conditions. In a normal-metal (N)/insulator/superconductor (S) tunnel junction, applying a field of the order of 100μT leads to significantly improved cooling of the N island by quasiparticle (QP) tunneling. These findings are attributed to faster QP relaxation within the S electrodes as a result of enhanced QP drain through regions with a locally suppressed energy gap due to magnetic vortices in the S leads at some distance from the junction.Description
Other note
Citation
Peltonen, J T, Muhonen, J T, Meschke, M, Kopnin, N B & Pekola, J P 2011, 'Magnetic-field-induced stabilization of nonequillibrium superconductivity in a normal-metal/insulator/superconductor junction', Physical Review B, vol. 84, no. 22, 220502, pp. 1-4. https://doi.org/10.1103/PhysRevB.84.220502