Josephson transport in Tl-cuprate bicrystal weak links

被引：12

作者：

Hu, QH

Johansson, LG

Langer, V

Chen, YF

Claeson, T

Ivanov, ZG

Kislinski, Y

Stepantsov, EA

机构：

[1] CHALMERS UNIV TECHNOL,DEPT PHYS,S-41296 GOTHENBURG,SWEDEN

[2] CHINESE ACAD SCI,INST PHYS,NATL LAB SUPERCONDUCTORS,BEIJING 100080,PEOPLES R CHINA

[3] RUSSIAN ACAD SCI,INST CRYSTALLOG,MOSCOW 117333,RUSSIA

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 1996年 / 105卷 / 5-6期

关键词：

D O I：

10.1007/BF00753873

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Superconducting epitaxial Tl2Ba2CaCu2O8 (Tl-2212) and Tl2Ba2CuO6 (Tl-22O1) thin films are synthesised on single crystal and bicrystal LaAlO3 substrates by an ex-situ process. Tl-2212 films were optically smooth, with T-c's from 105 to 108K and Delta T-c <2 K, I-c reaching 2.10(6) A/cm(2) at 77 K. Tl-2201 films exhibited tetragonal or orthorhombic symmetry depending on the thallium content. The T-c, of the as-synthesised Tl-2201 films was in the range 40-55 K. By oxygen depletion, T-c was increased by 15 - 20 K. Properties of weak links in Tl-2212 and Tl-2201 thin films are reported.

引用

页码：1261 / 1266

页数：6

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