The preparation of high-Tc superconducting films by liquid phase epitaxy and their surface analyses
| Project/Area Number |
03650016
|
|---|
| Research Category |
Grant-in-Aid for General Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Applied materials
|
|---|
| Research Institution | Tottori University |
|---|
Principal Investigator |
TOKUTAKA Heizo Tottori University, Faculty of Engineering, Professor, 工学部, 教授 (70032266)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
NISHIMORI Katsumi Tottori University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (40032271)
KISHIDA Satoru Tottori University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (30112105)
|
|---|
| Project Period (FY) |
1991 – 1992
|
| Project Status |
Completed (Fiscal Year 1992)
|
| Budget Amount *help |
¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1992: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1991: ¥1,200,000 (Direct Cost: ¥1,200,000)
|
|---|
| Keywords | 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 |
|---|
| Research Abstract |
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.
|
Report
(3 results)
Research Products
(6 results)
