获得多功能单一过渡层是简化涂层导体多层结构的主要课题之一. 采用化学溶液方法制备La掺杂CeO2过渡层,研究La掺杂量对CeO2薄膜表面形貌和双轴取向生长的影响. 结果表明La掺杂量为10mol%的薄膜表面平整致密,且能保持锐利的双轴织构. 通过多次涂敷工艺,获得具有120nm厚的Ce0.9La0.1O2过渡层. 采用脉冲激光沉积方法在Ce0.9La0.1O2/NiW结构模板层上沉积了YBCO超导薄膜,其起始临界转变温度达到90.5K. 这表明采用化学溶液方法制备Ce0.9La0.1O2薄膜是一种有前景的简化涂层导体多层结构的方法.
赵 跃
,
索红莉
,
GRIVEL Jean-Claude
,
叶 帅
,
刘 敏
,
马 麟
,
周美玲
. 化学溶液方法制备涂层导体CexLa1-xO2薄膜的研究[J]. 无机材料学报, 2009
, 24(6)
: 1201
-1204
.
DOI: 10.3724/SP.J.1077.2009.01201
Developing multi-functional single buffer layer is one of the most important challenges for simplification of coated conductors configuration. Ladoped CeO2 films were prepared by chemical solution method. And surface morphology and texture quality of the La-doped CeO2 films were investigated in details. The results show that the as-obtained pore-free Ce0.9La0.1O2 film are epitaxially deposited on the textured NiW substrate. The 120nm thickness Ce0.9La0.1O2 film is obtained though multi-coating route. The YBCO film with Tco=90.5K, which is deposited on Ce0.9La0.1O2/NiW metallic template by PLD method. It suggects that Ce0.9La0.1O2 film prepared by chemical solution route have a promising prospect for the simplification of coated conductors configuration.
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