| Title: |
Direct observation of stress accumulation and relaxation in small bundles of superconducting vortices in tungsten thin-films |
| Authors: |
Guillamon, I., Suderow, H., Vieira, S., Sese, J., Cordoba, R., De Teresa, J. M., Ibarra, M. R. |
| Publication Year: |
2011 |
| Collection: |
Condensed Matter |
| Subject Terms: |
Condensed Matter - Superconductivity, Condensed Matter - Soft Condensed Matter |
| More Details: |
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.
Comment: 4 pages, 4 figures, and 2 EPAPS figures |
| Document Type: |
Working Paper |
| DOI: |
10.1103/PhysRevLett.106.077001 |
| Access URL: |
http://arxiv.org/abs/1101.2297 |
| Accession Number: |
edsarx.1101.2297 |
| Database: |
arXiv |
