تقرير
Bardeen-Stephen flux flow law disobeyed in the high-$T_c$ superconductor Bi$_{2}$Sr$_{2}$CaCu$_{2}$O$_{8+\delta}$
| العنوان: | Bardeen-Stephen flux flow law disobeyed in the high-$T_c$ superconductor Bi$_{2}$Sr$_{2}$CaCu$_{2}$O$_{8+\delta}$ |
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| المؤلفون: | Pallinger, A., Sas, B., Pethes, I., Vad, K., Williams, F. I. B., Kriza, G. |
| سنة النشر: | 2008 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity |
| الوصف: | Pulsed high current experiments in single crystals of the high-$T_{c}$ superconductor Bi$_{2}$Sr$_{2}$CaCu$_{2}$O$_{8+\delta}$ in c-axis directed magnetic field $H$ reveal that the $ab$-face resistance in the free flux flow regime is a solely logarithmic function of H, devoid of any power law component. Re-analysis of published data confirms this result and leads to empirical analytic forms for the $ab$-plane and c-axis resistivities: $\rho_{ab}\propto$ $H^{3/4}$, which does not obey the expected Bardeen-Stephen result for free flux flow, and $\rho_{c} \propto H^{-3/4} \log^{2}H$. Comment: 5 pages, 3 figures. Submitted to Phys. Rev. Lett |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/0803.1804 |
| رقم الأكسشن: | edsarx.0803.1804 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |