| Presentation | 2014-10-24 Imaging method of temperatur distribution in Bi-2212 intrinsic Josephson junction stacks by double-sided fabrication Tsubasa Nishikata, Yukio Kotaki, Takahiro Kato, Takayuki Ishibashi, Kannji Yasui, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Bi_2Sr_2CaCu_2O_x (Bi-2212) crystal behaves as a stack of intrinsic Josephson junctions (IJJs). Recently many researchers have reported THz electromagnetic radiation from large mesa structures patterned on Bi-2212 crystal. In this study, we fabricated a Bi-2212 stack with seize of 183×38×1.15 μm^3 by double-sided patterning (DSP) process. To confirm the THz emission, current voltage characteristics was investigated and detection experiment of electromagnetic radiation by a Si bolometer was done. We detected the emission signal at 30, 40 and 50 K. Voltage appeared in a response of the bolometer was 513 mV at 30 K. Also the voltage decreased with increasing temperature from 513 mV at 30 K to 208 ～ 286 mV at 50 K. We found that the result arise from a strong self heating effect in Bi-2212 stack. In this paper we will report the next step to estimate the temperature distribution in Bi-2212 intrinsic Josephson junction stacks by DSP process. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Terahertz / Josephson junction / Bi_2Sr_2CaCu_2O_x (Bi-2212) |
| Paper # | CPM2014-112 |
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| Conference Information | |
| Committee | CPM |
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| Conference Date | 2014/10/17(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Component Parts and Materials (CPM) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Imaging method of temperatur distribution in Bi-2212 intrinsic Josephson junction stacks by double-sided fabrication |
| Sub Title (in English) | |
| Keyword(1) | Terahertz |
| Keyword(2) | Josephson junction |
| Keyword(3) | Bi_2Sr_2CaCu_2O_x (Bi-2212) |
| 1st Author's Name | Tsubasa Nishikata |
| 1st Author's Affiliation | Nagaoka University of Technology() |
| 2nd Author's Name | Yukio Kotaki |
| 2nd Author's Affiliation | Nagaoka University of Technology |
| 3rd Author's Name | Takahiro Kato |
| 3rd Author's Affiliation | Nagaoka University of Technology |
| 4th Author's Name | Takayuki Ishibashi |
| 4th Author's Affiliation | Nagaoka University of Technology |
| 5th Author's Name | Kannji Yasui |
| 5th Author's Affiliation | Nagaoka University of Technology |
| Date | 2014-10-24 |
| Paper # | CPM2014-112 |
| Volume (vol) | vol.114 |
| Number (no) | 276 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |