Nonlinear microwave response of Nb3Sn films : A case study of granular superconductors

The universal scaling behaviour of Bon with temperature, its dependence on the thermal conductivity of the substrate, and the good agreement between the quadratic field dependence of Rs and a weakly-coupled grain model indicate heating at grain boundaries as a possible mechanism.

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2001-03, Vol.11 (1), p.3434-3437
Main Authors: HEIN, Matthias A, PERPEET, Markus, MÜLLER, Günter
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Grain size
Microwave heating
Physics
Properties of type I and type II superconductors
Response to electromagnetic fields (nuclear magnetic resonance, surface impedance, etc.)
Superconductivity
Thin films
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Description
Summary:The universal scaling behaviour of Bon with temperature, its dependence on the thermal conductivity of the substrate, and the good agreement between the quadratic field dependence of Rs and a weakly-coupled grain model indicate heating at grain boundaries as a possible mechanism.
ISSN:1051-8223
1558-2515
DOI:10.1109/77.919801