| Presentation | 2009-07-21 Modulation Characteristics of Josephson Current Through Superconducting Junctions by Two-dimensional Scanninng of External Magnetic Field Akiyoshi NAKAYAMA, Susumu ABE, Norimichi WATANABE, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Modulation characteristics of Josephson current through rectangular, hexagonal and triangle shape superconducting junctions by two-dimensional (2-D) scanning of external magnetic field have been studied. Two pairs of Helmholtz coils were controlled by two current sources with GPIB (General Purpose Interface Bus) system to obtain the magnetic field dependence automatically. In the case of rectangular shape junction, the dependence of Josephson current on H_x-H_y plane has become the product of the two Fraunhofer patterns in the direction H_x, H_y parallel to each edge of this rectangular shape. However, the periods of these modulations were inverse proportional of each length of the rectangular shape perpendicular to the magnetic field. In the case of hexagonal shape junction, we have found hexagonal symmetry in the dependence of Josephson current on the H_x-H_y plane. Six ridges of the modulation surface were clearly observed in the directions of six edges of the hexagonal shape (0, 60, 120, 180, 240 300 degrees). In triangle shape junctions, six ridges of the modulation surface were also clearly observed in the directions of three edges of the triangle shape. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Josephson current / Modulation characteristics / two-dimensional (2-D) scanning of external magnetic field / Fraunhofer patterns |
| Paper # | SCE2009-15 |
| Date of Issue |
| Conference Information | |
| Committee | SCE |
|---|---|
| Conference Date | 2009/7/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Superconductive Electronics (SCE) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Modulation Characteristics of Josephson Current Through Superconducting Junctions by Two-dimensional Scanninng of External Magnetic Field |
| Sub Title (in English) | |
| Keyword(1) | Josephson current |
| Keyword(2) | Modulation characteristics |
| Keyword(3) | two-dimensional (2-D) scanning of external magnetic field |
| Keyword(4) | Fraunhofer patterns |
| 1st Author's Name | Akiyoshi NAKAYAMA |
| 1st Author's Affiliation | Faculty of Engineering, Kanagawa University() |
| 2nd Author's Name | Susumu ABE |
| 2nd Author's Affiliation | Faculty of Engineering, Kanagawa University |
| 3rd Author's Name | Norimichi WATANABE |
| 3rd Author's Affiliation | Faculty of Engineering, Kanagawa University:(Present office)National Institute for Materials Science Superconducting Materials Center |
| Date | 2009-07-21 |
| Paper # | SCE2009-15 |
| Volume (vol) | vol.109 |
| Number (no) | 141 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |