Year: 2005
Type: article
Abstract: In type-I superconducting cylinders, bulk superconductivity is destroyed above the first critical current. Below the second critical current the "type-I mixed state" displays fluctuation superconductivity which contributes to the total current. A magnetic flux on the axis of the cylinder can change the second critical current by as much as 50 percent, so that half a flux quantum can switch the cylinder from normal conduction to superconductivity: the Aharonov-Bohm effect manifests itself in macroscopically large resistance changes of the cylinder.
Source: Europhysics Letters (EPL)
Authors: C Ellenberger, F Gebhard, W Bestgen
Institution: Philipps University of Marburg
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1989845323