Title :
Chemical Solution Deposition of Y2 Ti2O7–La 2Zr2 O7 Composite Buffer Layers
Author :
Lei, Hechang ; Sun, Yuping ; Zhu, Xuebin ; Song, Wenhai ; Yang, Jian ; Gu, Hongwei
Author_Institution :
Chinese Acad. of Sci., Hefei
Abstract :
Chemical solution deposition, a very useful method for oxide film growth, is used to fabricate Y2Ti2O7 (YTO)-La2Zr2O7 (LZO) composite buffer layers on NiW (200) substrates. It is found that the orientation of the YTO layer is epitaxially related to the orientation of the LZO-NiW template. When YTO is prepared on a 900degC -annealed LZO layer, the orientation of the YTO is (222); however, the (400) oriented YTO layer is obtained when it is deposited on a 1000degC-annealed LZO-NiW template. These results suggest that the YTO orientation can be tuned by the LZO orientation and that YTO can be considered as one of the cap layers for coated conductors.
Keywords :
X-ray diffraction; annealing; buffer layers; lanthanum compounds; liquid phase deposition; nickel compounds; superconducting materials; superconducting thin films; ytterbium compounds; NiW (200) substrates; NiW surface; X-ray diffractometer; Y2Ti2O7-La2Zr2O7; annealing; chemical solution deposition; coated conductors; composite buffer layers; microstructure; oxide film growth; temperature 1000 C; temperature 900 C; Buffer layers; Chemicals; Conductors; High temperature superconductors; Substrates; Sun; Superconducting films; Superconducting materials; Yttrium barium copper oxide; Zirconium; Buffer layers; chemical solution deposition (CSD); coated conductors;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2007.902110
