Preparation of thin epitaxial YBCO films by ablation using fourth harmonics of Nd:YAG laser

被引：0
|
作者：
Kusumori, Tskeshi [1 ]
Muto, Hachizo [1 ]
机构：
[1] Natl Industrial Research Inst of, Nagoya, Nagoya, Japan
来源：
Physica C: Superconductivity and its Applications | 1997年 / 282-287卷 / pt 2期
关键词：
Crystal orientation - Crystalline materials - Deposition - Epitaxial growth - Laser ablation - Magnesia - Neodymium lasers - Oxide superconductors - Pulsed laser applications - Strontium compounds - Substrates - Yttrium compounds;
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摘要：
We have grown high-quality YBCO epitaxial films with c-axis orientation on MgO(100) and SrTiO3(100) crystalline substrates by pulsed laser deposition method using the fourth harmonics of Nd:YAG laser. The deposition conditions are followings: substrate temperature Ts = 760 °C, oxygen pressure Po = 50 Pa, laser frequency v = 1 Hz, and laser energy density ρ = 1 J/cm2pulse, which differ slightly from those of excimer laser. Those conditions originate from the feature of YAG laser which has a smaller pulse width and a higher peak-energy than that of excimer laser.
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页码：577 / 578
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