Mechanisms of the pancake vortex and vortex line movement in the high Tc superconductors Bi2Sr2CaCu2O8+δ and La1.93Sr0.07CuO4+δ

被引：2
|
作者：
Wang WeiXian
Zhou Fang
Tan Shun
Wu Huan
Zhang YuHeng [1 ]
机构：
[1] Univ Sci & Technol China, Natl High Magnet Field Lab, Hefei 230026, Peoples R China
[2] Chinese Acad Sci, Inst Phys, Natl Lab Superconduct, Beijing 100080, Peoples R China
[3] Chinese Acad Sci, Ctr Condensed Matter Phys, Beijing 100080, Peoples R China
来源：
SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY | 2007年 / 50卷 / 02期
基金：
中国国家自然科学基金;
关键词：
superconductivity; superconductive pancake; vortex dynamics;
D O I：
10.1007/s11433-008-0021-x
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In the strict sense, it is not very clear why with magnetic field increasing, the normal-superconductive (NS) transition becomes broad for Bi2Sr2CaCu2O8+delta(Bi2212) while the NS transitions are almost parallel for La1.93Sr0.07CuO4+delta (La214). In this paper, R-T relations are measured by the six-probe method. We propose a moving mechanism of the pancake vortex and vortex line for Bi2212. The theoretical curves fit the experiment data well.
引用
收藏
页码：240 / 248
页数：9
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