The preparation of high-Tc superconducting films by liquid phase epitaxy and their surface analyses

高温超导薄膜的液相外延制备及其表面分析

• 批准号: 03650016
• 负责人: TOKUTAKA Heizo
• 金额: $ 0.96万
• 依托单位: Tottori University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03650016/
• 关键词: Superconducting Oxide; Liquid Phase Epitaxy; Crystal Growth; Bi-Sr-Ca-Cu-O; Electronic Device; Surface Composition; Surface Structure; X-ray Photoelectron spectroscopy; BiーSrーCaーCuーO薄膜; 液相エピタキシ-法; X線光電子分光

We prepared the Bi-Sr-Ca-Cu-O (BSCCO) superconducting films by liquid phase epitaxy (LPE).(1) The systems of BSCCO film growth, which are called a tippinng method and a tipping method were designed and manufactured.(2) The BSCCO- and (BSCCO + KCl)- based phase diagrams were obtained by using the film growth systems.(3) The 7K-phase BSCCO films were deposited on the MgO(100) substrates by a dipping method of LPE.(4) From the results of X-ray photoelectron spectroscopy(XPS), we found that the LPE film did not contain K and Cl, which were the elements of the KCl flux. This may indicate that the preparation of the BSCCO single crystal films is possible.(5) We compared the XPS results of the LPE film with those of the 80K-phase BSCCO film deposited by rf magnetron sputtering and post-anneled, which had a good superconductivity, surface morphology and crystallization. The results indicated that the LPE film contained more Cu and Ca than the sputtered film.(6) The 7K-phase BSCCO films were obtained by a tipping method. The film was 7K single-phase and had a good surface morphology. Therefore, the BSCCO film is probable a single crystal film.We will carry out the BSCCO superconducting film by a tipping method of LPE and obtain BSCCO single crystal film.

我们通过液相交往（LPE）制备了BI-SR-CA-CU-O（BSCCO）超导膜。（1）BSCCO膜增长的系统被称为TIPPINNG方法，并且设计和制造了一种倾斜方法。（2）BSCCO-和（BSCCO + KCL）的增长（使用BSCCO + KCL） - 使用（使用BSCCO + KCL）的相位（3）（3）（3使用（3）使用（3个使用图）（3使用图片）（3次摄影）（3次摄影）。 BSCCO膜通过LPE的浸入方法沉积在MGO（100）底物上。（4）从X射线光电子光谱（XPS）的结果中，我们发现LPE膜不含K和Cl，即KCl磁通的元素。这可能表明BSCCO单晶膜的制备是可能的。（5）我们将LPE膜的XPS结果与由RF Magnetron溅射和通知后沉积的80k相BSCCO膜的XPS结果进行了比较，该膜具有良好的超导性，表面形态和结晶。结果表明，LPE膜比溅射薄膜包含更多的Cu和Ca。（6）7k相BSCCO膜是通过倾倒方法获得的。这部电影是7K单相，表面形态良好。因此，BSCCO膜可能是单晶膜。我们将通过LPE的倾斜方法进行BSCCO超导膜，并获得BSCCO单晶膜。

项目成果

S.Kishida et al.: "Crystal Growth of the High Quality 80K-Phase Bi-Sr-Ca-Cu-O Bulk Single Crystals" Advaces in Superconductivity IV. 477-480 (1992)

S.Kishida 等人：“高质量 80K 相 Bi-Sr-Ca-Cu-O 块状单晶的晶体生长”超导进展 IV。

小山 正一他: "大気中および真空中劈開した80K相Bi系超伝導単結晶のSEM・SAMによる表面分析" 真空. 35. 187-189 (1992)

Shoichi Koyama 等人：“通过 SEM/SAM 对空气和真空中劈裂的 80K 相 Bi 基超导单晶进行表面分析”真空。 35. 187-189 (1992)

小山 正一他: "大気中および真空中劈開した80K相Bi系超伝導単結晶のSEM.SAMによる表面分析" 真空. 35. 187-189 (1992)

Shoichi Koyama 等人：“通过 SEM.SAM 对空气和真空中劈裂的 80K 相 Bi 基超导单晶进行表面分析”真空。 35. 187-189 (1992)

S.KISHIDA et al.: "Crystal Growth of the High Quality 80K-Phase Bi-Sr-Ca-Cu-O Bulk Single Crystals" Advances in Superconductivity IV. 477-480 (1992)

S.KISHIDA 等人：“高质量 80K 相 Bi-Sr-Ca-Cu-O 块状单晶的晶体生长”超导进展 IV。

S.Kishida et al.: "Crystal Growth of the High Quality 80K-Phase Bi-Sr-Ca-Cu-O Bulk Single Crystals" Advances in Superconductivity. IV. 477-480 (1992)

S.Kishida 等人：“高质量 80K 相 Bi-Sr-Ca-Cu-O 块状单晶的晶体生长”超导进展。