SYNTHESIS OF BULK YBA2CU4O8 AND Y1-XCAXBA2CU4O8 AT 1-ATM OXYGEN-PRESSURE

被引：6

作者：

ZHENG, XG

KURIYAKI, H

HIRAKAWA, K

机构：

[1] Department of Electronics, Kyushu University 36, Fukuoka

来源：

PHYSICA C | 1994年 / 235卷

关键词：

D O I：

10.1016/0921-4534(94)91441-9

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A series of (YCa)Ba2Cu4O8 superconducting compounds has been synthesized at ambient oxygen pressure. A zero-resistance T-c of 76 K is obtained with the as-grown YBa2Cu4O8. In Y0.925Ca0.075Ba2Cu4O8, T-c is enhanced to 83 K, producing a transport critical current density of 190 A/cm(2) at 77 K.

引用

收藏

页码：435 / 436

页数：2

相关论文

共 6 条

[1] SYNTHESIS OF BULK SUPERCONDUCTING YBA2CU4O8 AT ONE ATMOSPHERE OXYGEN-PRESSURE [J].

CAVA, RJ ;

KRAJEWSKI, JJ ;

PECK, WF ;

BATLOGG, B ;

RUPP, LW ;

FLEMING, RM ;

JAMES, ACWP ;

MARSH, P .

NATURE, 1989, 338 (6213) :328-330

[2] BULK SYNTHESIS OF THE 81-K SUPERCONDUCTOR YBA2CU4O8 AT HIGH OXYGEN-PRESSURE [J].

KARPINSKI, J ;

KALDIS, E ;

JILEK, E ;

RUSIECKI, S ;

BUCHER, B .

NATURE, 1988, 336 (6200) :660-662

[3] SIMPLE METHOD FOR DIRECT SYNTHESIS OF YBA2CU4O8 AT ATMOSPHERIC OXYGEN-PRESSURE [J].

KHAN, NA ;

BABER, N ;

IQBAL, MZ ;

HAQ, AU .

APPLIED PHYSICS LETTERS, 1993, 63 (02) :257-259

[4] TC INCREASED TO 90-K IN YBA2CU4O8 BY CA DOPING [J].

MIYATAKE, T ;

GOTOH, S ;

KOSHIZUKA, N ;

TANAKA, S .

NATURE, 1989, 341 (6237) :41-42

[5] 8 NEW HIGH-TEMPERATURE SUPERCONDUCTORS WITH THE 1-2-4 STRUCTURE [J].

MORRIS, DE ;

NICKEL, JH ;

WEI, JYT ;

ASMAR, NG ;

SCOTT, JS ;

SCHEVEN, UM ;

HULTGREN, CT ;

MARKELZ, AG ;

POST, JE ;

HEANEY, PJ ;

VEBLEN, DR ;

HAZEN, RM .

PHYSICAL REVIEW B, 1989, 39 (10) :7347-7350

[6] SYNTHESIS OF A BULK YBA2CU4O8 SUPERCONDUCTOR BY ADDITION OF AG2O AT AN ORDINARY PRESSURE OF OXYGEN [J].

OHARA, S ;

MATSUDA, M ;

WATANABE, Y ;

TAKATA, M .

APPLIED PHYSICS LETTERS, 1991, 59 (05) :603-605