| Presentation | 2009-07-21 Investigation of characteristics with changing film thickness for Bi-2212/MgO fabricated by the MOD method Koji Hamanaka, Takashi Tachiki, Takashi Uchida, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have fabricated a Bi_2Sr_2CaCu_2O_<8+x>(Bi-2212) thin film on a MgO substrate by the metal-organic decomposition (MOD) method to apply the film to high frequency devices such as a terahertz oscillator and detector. However, in order to apply the film to devices flexibly, it is important to evaluate the characteristics of the film with changing the thickness. In this study, we optimized a firing condition for Bi-2212/MgO thin films with the thickness from 40 to 240nm by MOD and investigated the characteristics of the films. As a result, for the film with about 120nm fired at 840℃, a rotation angle η=45deg was dominant. On the other hand, for the film with about 240nm fired at 845℃, η～±12deg. were dominant. When increasing the film thickness, a surface morphology improved, the resistivity at on-set T_c decreased, and the critical current density (J_c) increased. J_c was 4～5×10^5A/cm^2 at 4.2K for the films with 120 and 240nm. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Metal-organic decomposition (MOD) method / film thickness / Bi-2212 thin films / MgO substrate |
| Paper # | SCE2009-9 |
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| Conference Information | |
| Committee | SCE |
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| Conference Date | 2009/7/14(1days) |
| Place (in Japanese) | (See Japanese page) |
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| 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) | Investigation of characteristics with changing film thickness for Bi-2212/MgO fabricated by the MOD method |
| Sub Title (in English) | |
| Keyword(1) | Metal-organic decomposition (MOD) method |
| Keyword(2) | film thickness |
| Keyword(3) | Bi-2212 thin films |
| Keyword(4) | MgO substrate |
| 1st Author's Name | Koji Hamanaka |
| 1st Author's Affiliation | Department of Electrical and Electronic Engineering, National Defense Academy() |
| 2nd Author's Name | Takashi Tachiki |
| 2nd Author's Affiliation | Department of Electrical and Electronic Engineering, National Defense Academy |
| 3rd Author's Name | Takashi Uchida |
| 3rd Author's Affiliation | Department of Electrical and Electronic Engineering, National Defense Academy |
| Date | 2009-07-21 |
| Paper # | SCE2009-9 |
| Volume (vol) | vol.109 |
| Number (no) | 141 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |