SUPERCONDUCTING PROPERTIES AND ORIENTATION BEHAVIOR OF REBa2Cu3Oy (RE = Yb, Er, Sm, Nd and La) FILMS BY METAL-ORGANIC DEPOSITION
SUPERCONDUCTING PROPERTIES AND ORIENTATION BEHAVIOR OF REBa2Cu3Oy (RE = Yb, Er, Sm, Nd and La) FILMS BY METAL-ORGANIC DEPOSITION
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金属有机沉积 REBa2Cu3Oy (RE = Yb、Er、Sm、Nd 和 La) 薄膜的超导性能和取向行为
DOI：
10.1142/s0217984906011207
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发表时间：
2006
影响因子：
1.9
通讯作者：
A. Ichinose
中科院分区：
文献类型：
--
作者：
K. Yokoyama;R. Kita;K. Matsumoto;Y. Yoshida;M. Mukaida;S. Horii;A. Ichinose
利用金属环烷酸盐在MgO和SrTiO3衬底上采用金属有机沉积技术研究了RE123 （RE = Yb, Er, Sm， Nd和La）薄膜的超导性能和取向行为。在MgO衬底上，只有Yb123薄膜表现出超导转变，Tc(0)为77.0 K， c轴取向为面内取向。在SrTiO3衬底上，Yb123、Er123、Sm123、Nd123和La123薄膜呈c轴取向，Tc(0)分别为89.5 K、89.7 K、80.5 K、85.0 K和47.6 K。Sm123和La123薄膜在MgO衬底上呈现方形片状晶粒，而在SrTiO3衬底上则呈现相对平坦的表面，表面覆盖着生长良好的晶粒。
We have investigated superconducting properties and orientation behavior of RE123 (RE = Yb, Er, Sm, Nd and La) films on MgO and SrTiO3 substrates by metal-organic deposition technique using metal naphthenates. On MgO substrates, only Yb123 films showed superconducting transition with Tc(zero) of 77.0 K and c-axis orientation with in-plane alignment. On SrTiO3 substrates, Yb123, Er123, Sm123, Nd123 and La123 films showed c-axis orientation with in-plane alignment, and Tc(zero) of 89.5 K, 89.7 K, 80.5 K, 85.0 K and 47.6 K, respectively. Sm123 and La123 films showed square and plate-like grains on MgO substrates, and relatively flat surface covered with well-grown grains on SrTiO3 substrates.