RF POWER DEPENDENCE OF AC JOSEPHSON CURRENT IN POINT-CONTACTS OF BAY(TM)CUO CERAMICS

被引：25

作者：

YAMASHITA, T

KAWAKAMI, A

NISHIHARA, T

TAKATA, M

KISHIO, K

机构：

[1] Technological Univ of Nagaoka, Nagaoka Jpn, Technological Univ of Nagaoka, Nagaoka Jpn

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1987年 / 26卷 / 05期

关键词：

BARIUM COMPOUNDS - Electric Conductivity - CERAMIC MATERIALS - ELECTRIC CONTACTS; POINT;

D O I：

10.1143/JJAP.26.L671

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using BaYCuO and BaTmCuO ceramics, point-contact Josephson junctions were fabricated to observe ac Josephson effect. Clear Shapiro steps were observed at 4. 2 K. The rf power dependence of Josephson currents were qualitatively fitted to Bessel functions.

引用

页码：L671 / L672

页数：2