期刊
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
卷 15, 期 12, 页码 1663-1668出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-2048/15/12/306
关键词
-
We report the growth of n-type superconducting T'-(La,Ce)(2)CuO4 and infinite-layer (IL) (Sr,La)CuO2 thin films by means of molecular beam epitaxy (MBE). The bulk synthesis of T-(La,Ce)(2)CuO4 and IL-(Sr,La)CuO2 requires complicated techniques: synthesis at low temperatures below 600 degreesC for the former and at high pressures above 3 GPa for the latter. This makes it difficult to grow bulk single crystals. We have found, however, that high-quality single-crystalline films of both compounds can be rather easily prepared by thin-film processes. Single-phase T'-(La,Ce)(2)CuO4 films can be obtained for a wide range of x (0.0 less than or equal to x less than or equal to similar to0.4). The best T-c(end) is over 30 K, which is the highest in the T' family. For IL-(SrLa)CuO2, by using KTaO3 substrates, high T-c(end) over 39 K and also metallic resistivity were achieved for the first time to our knowledge. We describe the key parameters in the growth and the properties of the resultant films.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据