Presentation 2007-07-27
Fabrication of STO and Bi-2212 thin-films on MgO substrates by the MOD method
Shoji Watanabe, Takashi Tachiki, Takashi Uchida, Tetsuji Uchiyama,
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Abstract(in English) We focus on realizing a high quality Bi_2Sr_2CaCu_2O_<8+x>(Bi-2212) thin film fabricated on an MgO substrate in order to apply the film to high frequency devices such as a terahertz oscillator and filter. In this study, SrTiO_3(STO) thin films which can be expected as a buffer layer and Bi-2212 thin films were fabricated on MgO substrates by the metal-organic decomposition(MOD) method which has the advantages such as its low running cost and ability to fabricate large-area films. By introducing the 2-step heat treatment and optimizing the temperature of precursor fabrication, we obtained the FWHM of 1.80° and 2.65° for the X-ray rocking curve and in-plane rocking curve of STO thin films, respectively. Further, we obtained the critical temperature(T_C) of about 75 K for Bi-2212 thin films by improving the heat treatment process.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Metal-organic decomposition (MOD) method / STO buffer layer / Bi-2212 thin films / MgO substrate
Paper # SCE2007-12
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Conference Information
Committee SCE
Conference Date 2007/7/20(1days)
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Registration To Superconductive Electronics (SCE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Fabrication of STO and Bi-2212 thin-films on MgO substrates by the MOD method
Sub Title (in English)
Keyword(1) Metal-organic decomposition (MOD) method
Keyword(2) STO buffer layer
Keyword(3) Bi-2212 thin films
Keyword(4) MgO substrate
1st Author's Name Shoji Watanabe
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
4th Author's Name Tetsuji Uchiyama
4th Author's Affiliation Miyagi University of Education
Date 2007-07-27
Paper # SCE2007-12
Volume (vol) vol.107
Number (no) 171
Page pp.pp.-
#Pages 6
Date of Issue