Direct observation of stress accumulation and relaxation in small bundles of superconducting vortices in tungsten thin-films

Autor:	Guillamon, I., Suderow, H., Vieira, S., Sese, J., Cordoba, R., De Teresa, J. M., Ibarra, M. R.
Rok vydání:	2011
Předmět:	Condensed Matter - Superconductivity Condensed Matter - Soft Condensed Matter
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.106.077001
Popis:	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
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1101.2297 Zobrazit plný text záznamu View this record from Arxiv