CRYSTAL-STRUCTURE OF STAGE-1 IODINE-INTERCALATED SUPERCONDUCTING IBI2SR2CACU2OX

被引：38

作者：

KIJIMA, N ^{[1
]}

GRONSKY, R ^{[1
]}

XIANG, XD ^{[1
]}

VAREKA, WA ^{[1
]}

ZETTL, A ^{[1
]}

CORKILL, JL ^{[1
]}

COHEN, ML ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720

来源：

PHYSICA C | 1991年 / 181卷 / 1-3期

关键词：

D O I：

10.1016/0921-4534(91)90329-W

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The crystal structure of stage-1 iodine-intercalated superconducting IBi2Sr2CaCu2Ox has been determined by transmission electron microscopy to belong to the superspace group C111Pma2BARBAR with subcell lattice parameters a = 5.4 angstrom, b = 5.4 angstrom, c = 18.9 angstrom, and a structural modulation wavelength of 26 angstrom. Intercalated iodine atoms alter the atomic stacking across Bi-O layers from the stagered configuration characteristic of superconducting Bi2Sr2CaCu2Ox to a vertically aligned configuration in IBi2Sr2CaCu2Ox. From the atomic spacings apparent in the images, it is concluded that the iodine layers bond to their neighboring Bi-O layers by van der Waals interactions.

引用

页码：18 / 24

页数：7

共 9 条

[1] STRUCTURAL CHEMISTRY AND THE LOCAL CHARGE PICTURE OF COPPER-OXIDE SUPERCONDUCTORS [J].