| Presentation | 2010-10-19 Ratchet-like behavior of the vortex in asymmetrical nanobridges Keisuke FUJITA, Kemmei KAJINO, Keita HAYAKAWA, Baoyu AN, Masumi INOUE, Akira FUJIMAKI, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We fabricated YBa_2Cu_3O_<7-x> (YBCO) nanobridges with an asymmetric structure, which were expected to show asymmetric current-voltage characteristics, aiming to the application for superconducting rectifying devices, and investigated their properties. The asymmetric nanobridges showed asymmetric current-voltage characteristics in an external magnetic field. The critical currents varied by about 10 percent at 2.4mT. We also observed thedecrease in the critical current for the positive current direction with varying magnetic field from -2.5mT to +2.5mT, while the critical current for the negative direction increased. These characteristics suggested the ratchet-like behavior of vortices in the nanobridge, which reflected the shape effect. We also obtained the magnetic field dependence of the dynamic resistance near I_c, which would suggest the change of the vortex behavior by the magnetic field. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | YBCO / nanobridge / vortex behavior / asymmetric shape / shape effect / ratchet |
| Paper # | SCE2010-24 |
| Date of Issue |
| Conference Information | |
| Committee | SCE |
|---|---|
| Conference Date | 2010/10/12(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) | Ratchet-like behavior of the vortex in asymmetrical nanobridges |
| Sub Title (in English) | |
| Keyword(1) | YBCO |
| Keyword(2) | nanobridge |
| Keyword(3) | vortex behavior |
| Keyword(4) | asymmetric shape |
| Keyword(5) | shape effect |
| Keyword(6) | ratchet |
| 1st Author's Name | Keisuke FUJITA |
| 1st Author's Affiliation | Nagoya University() |
| 2nd Author's Name | Kemmei KAJINO |
| 2nd Author's Affiliation | Nagoya University |
| 3rd Author's Name | Keita HAYAKAWA |
| 3rd Author's Affiliation | Nagoya University |
| 4th Author's Name | Baoyu AN |
| 4th Author's Affiliation | Nagoya University |
| 5th Author's Name | Masumi INOUE |
| 5th Author's Affiliation | Nagoya University |
| 6th Author's Name | Akira FUJIMAKI |
| 6th Author's Affiliation | Nagoya University |
| Date | 2010-10-19 |
| Paper # | SCE2010-24 |
| Volume (vol) | vol.110 |
| Number (no) | 235 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |