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

Guillamon, I. ; Suderow, H. ; Vieira, S. ; Sese, J. (Universidad de Zaragoza) ; Cordoba, R. ; De Teresa, J.M. (Universidad de Zaragoza) ; Ibarra, M.R. (Universidad de Zaragoza)

Resumen: We study the behavior of bundles of superconducting vortices when increasing the magnetic field using scanning tunneling microscopy and spectroscopy 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 continuous changes of the vortex arrangements, and identify small displacements, which stress and deform the vortex bundle, separated by larger rearrangements or avalanches, which release accumulated stress.

Idioma: Inglés

DOI: 10.1103/PhysRevLett.106.077001

Año: 2011

Publicado en: PHYSICAL REVIEW LETTERS 106, 7 (2011), 077001 [4 p.]
ISSN: 0031-9007

Factor impacto JCR: 7.37 (2011)

Categ. JCR: PHYSICS, MULTIDISCIPLINARY rank: 5 / 82 = 0.061 (2011) - Q1 - T1

Financiación: info:eu-repo/grantAgreement/ES/MICINN/CSD2007-00010
Financiación: info:eu-repo/grantAgreement/ES/MICINN/MAT2008-06567-C02
Financiación: info:eu-repo/grantAgreement/ES/MINECO/FIS2008-00454

Tipo y forma: Article (Published version)

Área (Departamento): Física de la Materia Condensada (Departamento de Física de la Materia Condensada)