Presentation 2003/4/16
Critical Current Density and 22GHz Surface Resistance of TFA-MOD YBCO Film on CeO_2-buffered MgO Substrate
Katsumi Suzuki, Kenji Taki, Takeshi Araki, Daisuke Yamashita, Izumi Hirabayashi, Youichi Enomoto,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) TFA-MOD (trifluoroacetate-metalorganic deposition) method is low cost non-vacuum coating process to obtain the thin film of superconductors with precise controllability of compositions. However, There was a possibility with micro-crack in YBa_2Cu_3O_7-δ(YBCO) film on the LaAlO_3 substrate. The YBCO film reliability is important in the microwave filter for the front-end which has already come in the practical stage of mobile telecommunication stations. The YBCO film on MgO can avoid the micro-crack, because the compressive stress is received by the MgO substrate. CeO_2 buffered layer must be inserted between YBCO film and MgO, because the TFA-MOD YBCO thin film preparation is indispensable in order to protect the fluorine reaction to the practically useful MgO substrate (2HF+MgO -> H_2O+MgF_2). The comparisons between TFA-MOD and PLD YBCO films on MgO substrates are reported on 22GHz surface resistance and critical current density characteristics.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) HTS / Microwave surface resistance / TFA-MOD / YBCO film / CeO_2 buffered layer / Critical current density
Paper # SCE2003-3,MW2003-3
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Committee SCE
Conference Date 2003/4/16(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) Critical Current Density and 22GHz Surface Resistance of TFA-MOD YBCO Film on CeO_2-buffered MgO Substrate
Sub Title (in English)
Keyword(1) HTS
Keyword(2) Microwave surface resistance
Keyword(3) TFA-MOD
Keyword(4) YBCO film
Keyword(5) CeO_2 buffered layer
Keyword(6) Critical current density
1st Author's Name Katsumi Suzuki
1st Author's Affiliation Superconductivity Research Laboratory()
2nd Author's Name Kenji Taki
2nd Author's Affiliation Superconductivity Research Laboratory
3rd Author's Name Takeshi Araki
3rd Author's Affiliation Superconductivity Research Laboratory
4th Author's Name Daisuke Yamashita
4th Author's Affiliation Superconductivity Research Laboratory
5th Author's Name Izumi Hirabayashi
5th Author's Affiliation Superconductivity Research Laboratory
6th Author's Name Youichi Enomoto
6th Author's Affiliation Superconductivity Research Laboratory
Date 2003/4/16
Paper # SCE2003-3,MW2003-3
Volume (vol) vol.103
Number (no) 20
Page pp.pp.-
#Pages 5
Date of Issue