Physica C: Superconductivity

Effect of copper content in precursor solution on the superconducting properties of YBCO films derived from low-fluorine solution

G Zhao, L Lei, X Liu, Y Chen

Index: Zhao, Gaoyang; Lei, Li; Liu, Xiaomei; Chen, Yuanqing Physica C: Superconductivity and its Applications, 2008 , vol. 468, # 23 p. 2317 - 2321

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Citation Number: 11

Abstract

Four low-fluorine solutions with different stoichiometry of Y: Ba: Cu= 1: 2: ξ (ξ= 3, 3.5, 4, 4.5) were prepared using Ba-TFA, yttrium and copper acetate as precursors. YBa2Cu3O7− δ (YBCO) films derived from these low-fluorine solutions were coated on LaAlO3 (LAO) single crystal substrates by dip-coating process. The effect of copper stoichiometry in precursor solution on the microstructure and superconductivity of YBCO films was studied. The ...