Temperature-dependent scaling of pinning force data in Bi-based high-Tc superconductors
The scaling of the normalized volume pinning forces, Fp/Fp,max, versus a reduced field h=Ha/Hscale has proven to be a very informative tool to study the origin of the flux pinning in superconductors. Remarkably, on Bi2Sr2Ca2Cu3O10+δ (Bi-2223) and Bi2Sr2CaCu2O8+δ (Bi-2212) data were mostly analyzed only in a narrow temperature range around 77 K. Here, we present a study of the pinning forces in various Bi-2223 samples at temperatures between 18 K and 80 K. The measurements clearly reveal that there is an apparent non-scaling of the pinning force data; instead, two clearly different temperature regimes for the scaling can be recognized, which are found to be in direct relation to a second step observed in the m(T) curves obtained upon field-cooling and -warming. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2005
Volume (Year): 44 (2005)
Issue (Month): 3 (04)
|Contact details of provider:|| Web page: http://www.springer.com|
Web page: http://publications.edpsciences.org/
|Order Information:||Web: http://www.springer.com/economics/journal/10051|
When requesting a correction, please mention this item's handle: RePEc:spr:eurphb:v:44:y:2005:i:3:p:277-280. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Sonal Shukla)or (Rebekah McClure)
If references are entirely missing, you can add them using this form.