SURFACE-MORPHOLOGY OF TL2BA2CA2CU3OY THIN-FILMS PREPARED BY THALLIUM DIFFUSION PROCESS

被引：5

作者：

ADACHI, S

ADACHI, H

ICHIKAWA, Y

SETSUNE, K

WASA, K

机构：

[1] Central Research Laboratories, Matsushita Electric Industrial Co. Ltd, Moriguchi Osaka, 570

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1991年 / 30卷 / 6B期

关键词：

OXIDE SUPERCONDUCTOR; HIGH-TC SUPERCONDUCTOR; TL-BA-CA-CU-O FILM; THIN FILM; THALLIUM VAPOR; THALLIUM DIFFUSION PROCESS;

D O I：

10.1143/JJAP.30.L1110

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The surface morphology of Tl2Ba2Ca2Cu3O(y) thin films prepared by the thallium diffusion process was studied. Ba-Ca-Cu-O rf-sputtered films were annealed with a powder mixture of Tl2O3, BaCuO2, Ca2CuO3 and CuO at a nominal composition of Tl1Ba1Ca3Cu3O(y). The films obtained by two-step annealing (at 900-degrees-C for 8 h and at 930-degrees-C for 8 min) had uniform appearance over a rather large area and exhibited superconductivity of T(c) (zero resistivity) = 117 K.

引用

收藏

页码：L1110 / L1113

页数：4

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