SYNTHESIS OF A BULK YBA2CU4O8 SUPERCONDUCTOR BY ADDITION OF AG2O AT AN ORDINARY PRESSURE OF OXYGEN

被引：24

作者：

OHARA, S

MATSUDA, M

WATANABE, Y

TAKATA, M

机构：

[1] Department of Electrical Engineering, Nagaoka University of Technology, Nagaoka

来源：

APPLIED PHYSICS LETTERS | 1991年 / 59卷 / 05期

关键词：

D O I：

10.1063/1.105399

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The superconducting bulk YBa2CU4O8 compound has been successfully synthesized by the addition of Ag2O as a reaction-rate enhancer at an ordinary pressure of oxygen. An almost single YBa2Cu4O8 phase together with the compositionally reasonable metallic silver phase could be formed when the added amount of Ag2O was larger than 30 wt. %. The obtained bulk YBa2CU408 compound showed a T(c)(zero) of 70 K in resistivity curve and a T(c)(onset) of 80 K in alternating-current magnetic susceptibility curve. The results well evidenced that the YBa2CU4O8 can be directly prepared by the conventional solid-state reaction.

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页码：603 / 605

页数：3

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