한국결정성장학회:학술대회논문집 (Proceedings of the Korea Association of Crystal Growth Conference)
- 한국결정성장학회 1999년도 PROCEEDINGS OF 99 INTERNATIONAL CONFERENCE OF THE KACG AND 6TH KOREA·JAPAN EMG SYMPOSIUM (ELECTRONIC MATERIALS GROWTH SYMPOSIUM), HANYANG UNIVERSITY, SEOUL, 06월 09일 JUNE 1999
- /
- Pages.371-387
- /
- 1999
LPE GROWTH OF $La_{2-x}Sr_xCuO_4$ SINGLE-CRYSTALLINE FILMS
- Tanaka, Isao (Institute of Inorganic Synthesis, Yamanashi University) ;
- Tanabe, Hideyoshi (Institute of Inorganic Synthesis, Yamanashi University) ;
- Watauchi, Satoshi (Institute of Inorganic Synthesis, Yamanashi University) ;
- Kojima, Hironao (Institute of Inorganic Synthesis, Yamanashi University)
- 발행 : 1999.06.01
초록
La2-xSrxCuO4 single-crystalline films were prepared on bulk single crystals of Zn-doped La2CuO4 as the substrates by LPE technique using tow deferent methods. When prepared using an alumina crucible in normal electrical furnace, the La2-xSrxCuO4 films were contaminated with less than 3 at% aluminum from the alumina crucibles. Aluminum contamination either reduced or completely destroyed the superconductivity of the La2-xSrxCuO4 films. For LPE growthby modified TSFZ method using an infrared heating furnace without crucibles, the La2-xSrxCuO4 films of x=0.11 showed superconducting with Tconset 36 K, which is 10 K higher than that in the La2-xSrxCuO4 bulk single crystals.
키워드