JPS6439084A - Josephson element - Google Patents
Josephson elementInfo
- Publication number
- JPS6439084A JPS6439084A JP62195696A JP19569687A JPS6439084A JP S6439084 A JPS6439084 A JP S6439084A JP 62195696 A JP62195696 A JP 62195696A JP 19569687 A JP19569687 A JP 19569687A JP S6439084 A JPS6439084 A JP S6439084A
- Authority
- JP
- Japan
- Prior art keywords
- axis
- barrier layer
- tunnel barrier
- parallel
- superconductors
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Superconductor Devices And Manufacturing Methods Thereof (AREA)
Abstract
PURPOSE:To obtain a Josephson element having a large critical current value, by making the direction of the C axis of a crystal structure substantially in parallel with respect to a tunnel barrier layer. CONSTITUTION:Superconductors 1 and 3 are arranged, with a tunnel barrier layer 2 inbetween. The tunnel barrier layer 2 is constituted so that the layer is substantially in parallel with the a C axis (direction of an arrow C). Namely, yttrium-barium-copper based oxide superconductors are formed on a substrate comprising, e.g., strontium titanate by a sputtering method. Then, the superconductors having a crystal structure, whose C axis is in parallel with the substrate, is obtained. As the tunnel barrier layer 2 thereon, e.g., yttrium oxide is formed by an evaporation method or a sputtering method. Thus a Josephson element can be manufactured. When a current is made to flow in a plane, which is perpendicular to the C axis, a large critical current can be obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62195696A JPS6439084A (en) | 1987-08-04 | 1987-08-04 | Josephson element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62195696A JPS6439084A (en) | 1987-08-04 | 1987-08-04 | Josephson element |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6439084A true JPS6439084A (en) | 1989-02-09 |
Family
ID=16345472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62195696A Pending JPS6439084A (en) | 1987-08-04 | 1987-08-04 | Josephson element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6439084A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0476687A2 (en) * | 1990-09-20 | 1992-03-25 | Sumitomo Electric Industries, Limited | Superconductor junction structure and process for fabricating the same |
JPH04111368A (en) * | 1990-08-30 | 1992-04-13 | Mitsubishi Electric Corp | Formation method for oxide superconductor film |
JPH04167578A (en) * | 1990-10-31 | 1992-06-15 | Sumitomo Electric Ind Ltd | Superconductive circuit and manufacture thereof |
US5126868A (en) * | 1988-12-27 | 1992-06-30 | Casio Computer Co., Ltd. | Color compensated double layered liquid crystal display device |
FR2675951A1 (en) * | 1991-04-23 | 1992-10-30 | Thomson Csf | JOSEPHSON JUNCTION STRUCTURE. |
US5232903A (en) * | 1987-05-06 | 1993-08-03 | Semiconductor Energy Laboratory Co., Ltd. | Oxide superconducting device having uniform oxygen concentration |
JPH0677545A (en) * | 1992-08-24 | 1994-03-18 | Nippon Telegr & Teleph Corp <Ntt> | Superconducting thin film vertical type junction element and its manufacture |
US5593950A (en) * | 1992-07-28 | 1997-01-14 | Nippon Telegraph & Telephone Corporation | Lattice matching super conducting device with a- and c- axes |
-
1987
- 1987-08-04 JP JP62195696A patent/JPS6439084A/en active Pending
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5232903A (en) * | 1987-05-06 | 1993-08-03 | Semiconductor Energy Laboratory Co., Ltd. | Oxide superconducting device having uniform oxygen concentration |
US5126868A (en) * | 1988-12-27 | 1992-06-30 | Casio Computer Co., Ltd. | Color compensated double layered liquid crystal display device |
JPH04111368A (en) * | 1990-08-30 | 1992-04-13 | Mitsubishi Electric Corp | Formation method for oxide superconductor film |
EP0476687A2 (en) * | 1990-09-20 | 1992-03-25 | Sumitomo Electric Industries, Limited | Superconductor junction structure and process for fabricating the same |
US5488030A (en) * | 1990-09-20 | 1996-01-30 | Sumitomo Electric Industries, Inc. | Superconductor junction structure including two oxide superconductor layers separated by a non-superconducting layer |
JPH04167578A (en) * | 1990-10-31 | 1992-06-15 | Sumitomo Electric Ind Ltd | Superconductive circuit and manufacture thereof |
FR2675951A1 (en) * | 1991-04-23 | 1992-10-30 | Thomson Csf | JOSEPHSON JUNCTION STRUCTURE. |
US5378683A (en) * | 1991-04-23 | 1995-01-03 | Thomson-Csf | Josephson junction structure |
US5593950A (en) * | 1992-07-28 | 1997-01-14 | Nippon Telegraph & Telephone Corporation | Lattice matching super conducting device with a- and c- axes |
JPH0677545A (en) * | 1992-08-24 | 1994-03-18 | Nippon Telegr & Teleph Corp <Ntt> | Superconducting thin film vertical type junction element and its manufacture |
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