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.
引用
收藏
页码：603 / 605
页数：3
相关论文
共 50 条
  • [1] BULK SYNTHESIS OF THE 81-K SUPERCONDUCTOR YBA2CU4O8 AT HIGH OXYGEN-PRESSURE
    KARPINSKI, J
    KALDIS, E
    JILEK, E
    RUSIECKI, S
    BUCHER, B
    NATURE, 1988, 336 (6200) : 660 - 662
  • [2] SYNTHESIS AND PROPERTIES OF THE YBA2CU4O8 SUPERCONDUCTOR
    JIN, S
    OBRYAN, HM
    GALLAGHER, PK
    TIEFEL, TH
    CAVA, RJ
    FASTNACHT, RA
    KAMMLOTT, GW
    PHYSICA C, 1990, 165 (5-6): : 415 - 418
  • [3] Pressure dependence of the oxygen isotope effect in the superconductor YBa2Cu4O8
    Suresh, N.
    Storey, J. G.
    Williams, G. V. M.
    Tallon, J. L.
    PHYSICAL REVIEW B, 2008, 78 (10):
  • [4] Pressure effects on Tc of superconductor YBa2Cu4O8
    Yamada, Yuh, 1600, (29):
  • [5] PRESSURE EFFECTS ON TC OF SUPERCONDUCTOR YBA2CU4O8
    YAMADA, Y
    MATSUMOTO, T
    KAIEDA, Y
    MORI, N
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1990, 29 (02): : L250 - L253
  • [6] SYNTHESIS OF BULK SUPERCONDUCTING YBA2CU4O8 AT ONE ATMOSPHERE OXYGEN-PRESSURE
    CAVA, RJ
    KRAJEWSKI, JJ
    PECK, WF
    BATLOGG, B
    RUPP, LW
    FLEMING, RM
    JAMES, ACWP
    MARSH, P
    NATURE, 1989, 338 (6213) : 328 - 330
  • [7] EFFECT OF AG2O ADDITION ON THE FORMATION OF Y1BA2CU4O8 .2. THE SYNTHESIS AT AN ORDINARY PRESSURE OF OXYGEN
    OHARA, S
    MATSUDA, M
    WATANABE, Y
    TAKATA, M
    PHYSICA C, 1991, 190 (1-2): : 87 - 88
  • [8] SYNTHESIS OF SINGLE-PHASE YBA2CU4O8 SUPERCONDUCTOR AT ATMOSPHERIC-PRESSURE OF OXYGEN
    RAO, GS
    CHAND, P
    KHAN, DC
    JOURNAL OF MATERIALS SCIENCE LETTERS, 1993, 12 (06) : 402 - 404
  • [9] UNSTABLE BEHAVIOR OF THE YBA2CU4O8 SUPERCONDUCTOR UNDER PRESSURE
    SINGH, BP
    PANDEY, SP
    NAYAR, RK
    KUMARASWAMY, BV
    NARLIKAR, AV
    PHYSICAL REVIEW B, 1992, 46 (06): : 3573 - 3580
  • [10] Preparation of bulk superconducting YBa2Cu4O8 at one atmosphere oxygen pressure
    Tatsumi, M
    Tanisita, J
    Yamamoto, S
    JOURNAL OF MATERIALS SCIENCE LETTERS, 1996, 15 (02) : 120 - 123
12345