| Presentation | 2009-01-29 Origin of subgap current in an SIS junction Toyoaki SUZUKI, Takashi NOGUCHI, Akira ENDO, Hiroshi MATSUO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The subgap current in an SIS junction is reduced exponentially as the temperature decreases. However, the reduction is saturated below a given temperature. This phenomenon is a bottleneck to develop high sensitive SIS photon detectors. In order to investigate the origin of the subgap current, under various temperatures, we measured I-V properties of a Nb/Al-AIN/Nb junction that was manufactured at National Astronomical Observatory of Japan/Advanced Technology Center (NAOJ/ATC). Obtained I-V properties are then compared to two models: (1) quasi-particle lifetime broadening effect, and (2) single-particle+two-particle tunneling with quasi-particle lifetime broadening effect. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | SIS photon detector / Nb/Al-AIN/Nb junction / I-V property / subgap current |
| Paper # | SCE2008-35 |
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| Conference Information | |
| Committee | SCE |
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| Conference Date | 2009/1/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Superconductive Electronics (SCE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Origin of subgap current in an SIS junction |
| Sub Title (in English) | |
| Keyword(1) | SIS photon detector |
| Keyword(2) | Nb/Al-AIN/Nb junction |
| Keyword(3) | I-V property |
| Keyword(4) | subgap current |
| 1st Author's Name | Toyoaki SUZUKI |
| 1st Author's Affiliation | National Institutes of Natural Sciences National Astronomical Observatory of Japan() |
| 2nd Author's Name | Takashi NOGUCHI |
| 2nd Author's Affiliation | National Institutes of Natural Sciences National Astronomical Observatory of Japan |
| 3rd Author's Name | Akira ENDO |
| 3rd Author's Affiliation | National Institutes of Natural Sciences National Astronomical Observatory of Japan |
| 4th Author's Name | Hiroshi MATSUO |
| 4th Author's Affiliation | National Institutes of Natural Sciences National Astronomical Observatory of Japan |
| Date | 2009-01-29 |
| Paper # | SCE2008-35 |
| Volume (vol) | vol.108 |
| Number (no) | 420 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |