THE CRYSTAL-STRUCTURE OF (C0.4CU0.6)SR2(Y0.86SR0.14)CU2O7

被引：103

作者：

MIYAZAKI, Y ^{[1
]}

YAMANE, H ^{[1
]}

OHNISHI, N ^{[1
]}

KAJITANI, T ^{[1
]}

HIRAGA, K ^{[1
]}

MORII, Y ^{[1
]}

FUNAHASHI, S ^{[1
]}

HIRAI, T ^{[1
]}

机构：

[1] JAPAN ATOM ENERGY RES INST,DEPT PHYS,TOKAI,IBARAKI 31911,JAPAN

来源：

PHYSICA C | 1992年 / 198卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(92)90258-E

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The crystal structure of a new compound, (C0.4Cu0.6)Sr2(Y0.86Sr0.14)Cu2O7, is derived from the structure of YBa2CU307. Forty percent of CuO chains in the YBa2Cu3O7 Structure are replaced by CO3 groups. This new compound has a superstructure along the a-axis and the c-axis. Diffuse superlattice reflections having periods of a*/2-a*/3 and c*/2 were observed in electron diffraction patterns. Locally ordered distributions of C and Cu atoms were seen in high-resolution images taken by transmission electron microscopy with an incident beam parallel to [010]. The basic structure of this superstructure was determined by neutron powder diffraction, assuming orthorhombic symmetry with the space group, Pmmm (lattice constants: a = 3.8278 (2), b = 3.8506 (2) and c = 11.1854(5)angstrom).

引用

页码：7 / 13

页数：7

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