Possible Three-Terminal Device with YBCO Angle Grain Boundary

被引：8

作者：

Chen, J. ^{[1
]}

Yamashita, T. ^{[1
]}

Sasahara, H. ^{[1
]}

Suzuki, H. ^{[2
]}

Kurosawa, H. ^{[2
]}

Hirotsu, Y. ^{[3
]}

机构：

[1] Nagaoka Univ Technol, Dept Elect, Nagaoka, Niigata 94021, Japan

[2] Riken Corp, Kumagaya, Saitama 360, Japan

[3] Nagaoka Univ Technol, Dept Mech Engn, Nagaoka, Niigata 94021, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1991年 / 1卷 / 02期

关键词：

D O I：

10.1109/77.84616

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 de and ac Josephson effects were observed clearly in YBa2Cu3O7-delta (YBCO) bridges with metal-organic chemical vapor deposited (MOCVD) thin films on (100)MgO substrates. In TEM observations and x-ray analysis, the angle grain boundaries (AGB's) in these films were observed. Josephson junction resulting from the AGB's showed the semiconducting barrier junction property dominantly, and the AGB's consisted of YBCO with oxygen deficiency. Based on these results, we propose a three-terminal device with the Josephson junction. The Josephson junction can be prepared by depositing an epitaxial YBCO thin film with one AGB on a bicrystal (100)SrTiO3 or (100)Si substrate, and the insulated gate for the application of electric field to the AGB is formed over the junction. The supercurrent in the Josephson junction is controlled by the electric field effect of the semiconducting AGB in the junction.

引用

页码：102 / 107

页数：6

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