SCALING BEHAVIOR OF RESISTIVITY TAILS AT THE EDGE OF SUPERCONDUCTING TRANSITION IN BI2SR2CACU2O8+DELTA EPITAXIAL-FILMS

被引：9
作者：
BALESTRINO, G
LIVANOV, DV
MONTUORI, M
机构：
[1] Dipartimento di Ingegneria Meccanica, Universita di Roma Tor Vergata, I-00173 Roma
来源：
PHYSICA C | 1994年 / 234卷 / 1-2期
关键词：
D O I：
10.1016/0921-4534(94)90057-4
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The behavior of the resistivity just below the mean-field transition temperature has been investigated in Bi2Sr2CaCu2O8+delta epitaxial films with various oxygen contents. Analysis of the temperature dependence of the resistivity was performed in terms of the Kosterlitz-Thouless charge-unbinding theory and the Ginzburg-Landau Coulomb-gas model for vortex fluctuations. A crossover from two- to three-dimensional vortex configuration was observed as the temperature approaches the Kosterlitz-Thouless transition temperature from above. The carrier mean free path and the effective interplane coupling as well as their dependences on the oxygen content were evaluated.
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页码：77 / 84
页数：8
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