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Vortex core shrinkage in a two gap superconductor: Application to MgB2

✍ Scribed by S. Graser; A. Gumann; T. Dahm; N. Schopohl

Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
131 KB
Volume
460-462
Category
Article
ISSN
0921-4534

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✦ Synopsis

As a model for the vortex core in MgB 2 we study a two band model with a clean r band and a dirty p band. We present calculations of the vortex core size in both bands as a function of temperature and show that there exists a Kramer-Pesch effect in both bands even though only one of the bands is in the clean limit. We present calculations for different p band diffusivities and coherence lengths.

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