Preparation of Bi2Sr2CaCu2O8+delta-YBa2Cu3O7-delta Bilayer Films by Acetate Based Photosensitive Sol-Gel Method
Preparation of Bi2Sr2CaCu2O8+delta-YBa2Cu3O7-delta Bilayer Films by Acetate Based Photosensitive Sol-Gel Method
复制标题
醋酸基光敏溶胶-凝胶法制备Bi2Sr2CaCu2O8 δ-YBa2Cu3O7-δ双层薄膜
DOI：
10.1109/tasc.2018.2822725
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发表时间：
2018
影响因子：
1.8
通讯作者：
Jia Jiqiang
中科院分区：
文献类型：
--
作者：
Liu Xiaoqin;Zhao Gaoyang;Lei Li;Li Limin;Fang Xinxiong;Jia Jiqiang
Bi2Sr2CaCu2O8+δ(Bi-2212)/YBa2Cu3O7-δ(YBCO) and YBCO/Bi-2212 heteroepitaxial bilayer films have been successfully prepared on LaAlO3(LAO) monocrystalline substrates by acetate based photosensitive Sol-Gel method. Two superconducting transition steps in the R-T curves of YBCO/Bi-2212 and Bi-2212/YBCO bilayer films were clearly observed. The first transition step has the superconducting critical transition temperature (Tc) of 90.1-90.8 K and the superconducting transition width (ΔTc) of 2-2.2 K, and these values correspond to the Tc and ΔTc values of YBCO single film. The second transition step has the Tc of 80-84 K and the ΔTc of 4.6-5.2 K, and these values correspond to the Tc and ΔTc values of Bi-2212 single film. XRD results showed that YBCO/Bi-2212 and Bi-2212/YBCO bilayer films grow heteroepitaxially with good in-plane and out-of-plane growth texture.
