FABRICATION OF THIN-FILM-TYPE JOSEPHSON-JUNCTIONS USING A BI-SR-CA-CU-O/BI-SR-CU-O/BI-SR-CA-CU-O STRUCTURE

被引:99
作者
MIZUNO, K
HIGASHINO, K
SETSUNE, K
WASA, K
机构
[1] Central Research Laboratories, Matshushita Electric Industrial Co., Ltd., Moriguchi
关键词
D O I
10.1063/1.103173
中图分类号
O59 [应用物理学];
学科分类号
摘要
Thin-film Josephson junctions with normal metal barriers using a Bi-based high Tc oxide superconductor were successfully fabricated. Bi 2Sr2Ca1Cu2Ox films were used for both superconducting electrodes and Bi2Sr2Cu 1Oy for the barrier layer. The junction area of 20×40 μm2 was defined by photolithography and Ar ion milling. These S/N/S-type junctions clearly exhibited the ac Josephson effect under the irradiation of radio frequency waves of 12 GHz and more than 20 Shapiro steps were observed.
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页码:1469 / 1471
页数:3
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