New Growth Conditions for the c-Axis Oriented NdBa_2Cu_3O_x Films by Pulsed Laser Deposition: Lower Substrate Temperature and Higher Oxygen Pressure
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概要
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The substrate temperature at which the c-axis oriented NdBa_2Cu_3O_x (NdBCO) film grows is 80-100℃ higher than that for the c-axis oriented YBa_2Cu_3O_x (YBCO). This is a drawback of composing multilayers for device applications although NdBCO has crystalline and superconductive properties superior to those of YBCO. We successfully grew the c-axis oriented NdBCO films in the temperature range lower than that for the a-axis preferred oriented film at a high oxygen pressure by pulsed laser deposition. The optimum c-axis oriented growth condition was determined as follows: substrate temperature is 790℃, oxygen pressure 900 mTorr, and laser energy density 0.5 J/cm^2.
- 社団法人応用物理学会の論文
- 1999-08-15
著者
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Zama Hideaki
Superconductivity Research Laboratory International Superconductivity Technology Center
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Suzuki Takeo
Faculty of Textile Science, Kyoto Kogei-Sen-i University
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ISHIKAWA Kazuhiro
Superconductivity Research Laboratory, ISTEC
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Morishita Tadataka
Superconductivity Research Laboratory International Superconductivity Technology Center
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Suzuki Takeo
Faculty Of Textile Science Kyoto Kogei-sen-i University
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Suzuki Takeo
Faculty Of Engineering Tokyo Denki University
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Ishikawa Kazuhiro
Superconductivity Research Laboratory International Superconductivity Technology Center:faculty Of E
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