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Commensurability effects induced by a periodic array of nanoscale anti-dots in Nb superconductor | | A.A.Zhukov
; E.T.Filby
; P. A. J. de Groot
; V.V.Metlushko
; B.Ilic
; | | Date: |
22 Oct 2003 | | Subject: | Superconductivity; Materials Science; Mesoscopic Systems and Quantum Hall Effect | cond-mat.supr-con cond-mat.mes-hall cond-mat.mtrl-sci | | Affiliation: | Department of Physics and Astronomy, University of Southampton, Southampton, United Kingdom, Department of Electrical and Computer Engineering, University of Illinois at Chicago, Chicago, Illinois, United States, Cornell Nanofabrication Facility and | | Abstract: | We study the interactions of the vortex lattice with a periodic square array of holes in a superconducting Nb film using magnetic and resistive measurements. Three different temperature regions have been observed. They are governed by interplay between vortex-vortex interactions and pinning by holes. At low temperatures flux jumps suppress the commensurability anomalies. In all measurements a peak has been observed close to commensurate states 5-7. The Cole-Cole plot reveals significant changes in the flux penetration mechanism at this point. | | Source: | arXiv, cond-mat/0310526 | | Services: | Forum | Review | PDF | Favorites | |
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