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1/f flux flow noise due to a coexistence of qualitatively different vortex states

Babic, D., Bentner, J., Sürgers, C. and Strunk, Christoph (2007) 1/f flux flow noise due to a coexistence of qualitatively different vortex states. Physical Review B (PRB) 76 (134515), p. 134515.

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Date of publication of this fulltext: 05 Aug 2009 13:58

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Other URL: http://link.aps.org/doi/10.1103/PhysRevB.76.134515


Abstract

We investigate the vortex-motion voltage noise in a hybrid structure consisting of a weak-pinning amorphous Nb0.7Ge0.3 microbridge on top of which a strong-pinning, longitudinal Nb line with a narrow interruption in the middle is added. The Nb part enforces a branching of the applied current, causing a modulation of the current density within the Nb0.7Ge0.3, where vortex motion induces a voltage. ...

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Item type:Article
Date:25 October 2007
Institutions:Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Christoph Strunk
Identification Number:
ValueType
10.1103/PhysRevB.76.134515DOI
Classification:
NotationType
74.25.QtPACS
74.40.+kPACS
74.78.DbPACS
Keywords:FLICKER 1-F NOISE; FILMS; SUPERCONDUCTORS; FLUCTUATIONS; INSTABILITY 1/f noise, amorphous state, fluctuations in superconductors, flux flow, germanium alloys, niobium alloys, superconducting materials
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Partially
Item ID:8086
Owner only: item control page

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