Characteristic relationship between the maximum Josephson current and the c-axis conductivity observed for intrinsic Josephson junctions in Bi-Sr-Ca-Cu-O

被引：2

作者：

Suzuki, M ^{[1
]}

Hamatani, T

Yamada, Y

Anagawa, K

Watanabe, T

机构：

[1] Kyoto Univ, Dept Elect Sci & Engn, Kyoto 6158510, Japan

[2] NTT Corp, NTT Photon Labs, Atsugi, Kanagawa 2430198, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2005年 / 15卷 / 02期

关键词：

Bi-Sr-Ca-Cu-O; high-temperature superconductors; Josephson junctions; tunneling spectroscopy;

D O I：

10.1109/TASC.2005.849747

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The maximum Josephson current (MJC) is measured for small mesas fabricated on cleaved surfaces of B2Sr2CaCu2O8+delta single crystals. It is found that the MJC increases dramatically with increasing c-axis conductivity. The behavior indicates that the MJC is proportional to the square of the c-axis conductivity. This implies that the superconductivity in high-T-c superconductors is likely to be inhomogeneous.

引用

页码：189 / 192

页数：4

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