Vortex Cores in Narrow Thin-Film Strips
- Ames Lab., and Iowa State Univ., Ames, IA (United States)
- Okayama Univ. (Japan)
In this work, we study vortex current distributions in narrow thin-film superconducting strips with the help of analytic expression of the vortex current derived within the London theory. Using definition of the vortex core “boundary” as a curve where the current reaches the depairing value, vortex core size and shape are estimated as a function of vortex position in the strip. We show that the core size near the strip edges is smaller than in the rest of the strip, indicating that the Bardeen–Stephen flux-flow resistivity should be reduced near the edges. Moreover, at elevated temperatures, when the depairing current is small, the vortex core may extend to the whole strip width, thus turning into an edge-to-edge phase-slip line.
- Research Organization:
- Ames Laboratory (AMES), Ames, IA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
- Grant/Contract Number:
- AC02-07CH11358
- OSTI ID:
- 1650019
- Alternate ID(s):
- OSTI ID: 22995111
- Report Number(s):
- IS-J--10,288
- Journal Information:
- Journal of the Physical Society of Japan, Journal Name: Journal of the Physical Society of Japan Journal Issue: 9 Vol. 89; ISSN 0031-9015
- Publisher:
- Physical Society of JapanCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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