Vortex-induced rectification in type II superconductors
Journal Article
·
· Journal of Low Temperature Physics
- Univ. of Maryland, College Park, MD (United States)
The authors report a large rectification effect in superconducting films in a parallel magnetic field. This rectification effect is manifested in two features in current-voltage characteristics: The critical current, I{sub c}, is found to differ by as much as 40% for negative and positive currents, and beyond I{sub c}, the magnitude of the voltage is different for positive and negative currents, {vert_bar}V(+I){vert_bar}{ne}{vert_bar}V(-I){vert_bar}. Futhermore, the critical current difference {vert_bar}I{sub c+}{vert_bar}-{vert_bar}I{sub c+}{vert_bar} shows complicated behavior, changing sign as temperature and magnetic field are varied. The authors discuss a model based on the Bean-Livingston surface barrier and inhomogeneous bulk pinning that accounts for all observed behavior.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 183269
- Journal Information:
- Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 5-6 Vol. 100; ISSN JLTPAC; ISSN 0022-2291
- Country of Publication:
- United States
- Language:
- English
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