Ginzburg-Landau Parameter for YBCO

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Can anyone provide a good reference which gives the G-L parameter for YBCO (a) along the ab-plane of the sample and (b) along the c-axis?

I've been to the depths of Google Scholar and back and found nothing, so any help would be much appreciated. :)
 
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Muon Cat said:
Can anyone provide a good reference which gives the G-L parameter for YBCO (a) along the ab-plane of the sample and (b) along the c-axis?

:)

Typically YBCO is highly anisotropic parallel and perpendicular to the planes in terms of the G-L (coherence length / penetration ratio).
For the details derived from magnetization curves see page 789 here ; entire last paragraph:

http://books.google.com/books?id=Pg...k6PtJzZEXcV_k86PgGk&hl=en#v=onepage&q&f=false

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