AG DISTRIBUTION IN A SUPERCONDUCTING AG-BA-CA-CU-O SAMPLE

被引：10

作者：

WU, XJ ^{[1
]}

JIN, CQ ^{[1
]}

ADACHI, S ^{[1
]}

YAMAUCHI, H ^{[1
]}

机构：

[1] INT SUPERCOND TECHNOL CTR,SUPERCOND RES LAB,10-13 SHINONOME 1-CHOME,KOTO KU,TOKYO 135,JAPAN

来源：

PHYSICA C | 1994年 / 224卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(94)90619-X

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A sample with the nominal composition of Ag:Ba:Ca:Cu=1:2:3:4 synthesized under high pressure showed superconductivity at 112 K, according to DC magnetic susceptibility measurements. Electron diffraction analysis indicated that the main phase had a perovskite-related structure with a primitive tetragonal unit cell of the lattice parameters, a=3.85 angstrom and c=21.4 angstrom. selected-area EDX analysis revealed the existence of only Ba, Ca and Cu but no Ag in the perovskite-related matrix phase. Ag-rich small particles were detected by TEM observation and EDX analysis.

引用

页码：175 / 178

页数：4

共 5 条

[1] 117-K SUPERCONDUCTIVITY IN THE BA-CA-CU-O SYSTEM [J].

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PHYSICA C, 1994, 223 (3-4) :238-242

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[4] SILVER-ACCELERATED PHASE-TRANSFORMATION FROM YBA2CU3O7-X TO YBA2CU4O8 [J].

WU, NL ;

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PHYSICA C, 1992, 204 (1-2) :21-29

[5] NOVEL HOMOLOGOUS SERIES OF SUPERCONDUCTING COPPER OXIDES, CU-12(N-1)N [J].

WU, XJ ;

ADACHI, S ;

JIN, CQ ;

YAMAUCHI, H ;

TANAKA, S .

PHYSICA C, 1994, 223 (3-4) :243-248

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