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Direct observation of stress accumulation and relaxation in small bundles of superconducting vortices in tungsten thin-films
- Publication Year :
- 2011
-
Abstract
- We study the behavior of bundles of superconducting vortices when increasing the magnetic field using scanning tunneling microscopy and spectroscopy (STM/S) at 100 mK. Pinning centers are given by features on the surface corrugation. We find strong net vortex motion in a bundle towards a well defined direction. We observe continuos changes of the vortex arrangements, and identify small displacements, which stress and deform the vortex bundle, separated by larger re-arrangements or avalanches, which release accumulated stress.<br />Comment: 4 pages, 4 figures, and 2 EPAPS figures
- Subjects :
- Condensed Matter - Superconductivity
Condensed Matter - Soft Condensed Matter
Subjects
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.1101.2297
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevLett.106.077001