Superconducting thin films of electron-doped infinite-layer Sr1-xLaxCuO2 grown by molecular beam epitaxy

被引：13
|
作者：
Karimoto, S
Ueda, K
Naito, M
Imai, T
机构：
[1] NTT Corp, Basic Res Labs, Atsugi, Kanagawa 2430198, Japan
[2] NTT Corp, Photon Labs, Tokai, Ibaraki 3191193, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2002年 / 378卷
关键词：
Sr1-xLaxCuO(2); infinite-layer compound; electron-doped superconducting cuprate; thin film; MBE;
D O I：
10.1016/S0921-4534(02)01396-5
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We grew single-crystalline Sr1-xLaxCuO2 thin films of electron-doped infinite-layer compounds by molecular beam epitaxy. Crucial to our success was the use of KTaO3 substrates. The best film showed T-c(onset) = 41.5 K and T-c(zero) = 39.0 K. The resistivity of the optimum-doped films exhibited metallic temperature dependence with a low resistivity of 320 muOmega cm. at room temperature and 120 muOmega cm. just above T-c. Such excellent electrical properties have not previously been reported for this system with either thin films or bulk polycrystalline specimens. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：127 / 130
页数：4
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