(BA,K)3BI2O7 - A LAYERED BISMUTH OXIDE

被引：38

作者：

CAVA, RJ

SIEGRIST, T

PECK, WF

KRAJEWSKI, JJ

BATLOGG, B

ROSAMILIA, J

机构：

[1] AT and T Bell Laboratories, Murray Hill

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.44.9746

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The synthesis and crystal structure of a new perovskite-based bismuth oxide are reported. The phase, of composition Ba1.7K1.3Bi2O7, is the n = 2 member of the Ruddlesden-Popper series A(n + 1)B(n)O3n + 1. It has tetragonal symmetry, space group I4/mmm, with unit-cell dimensions a = 4.2477(6) angstrom, and c = 21.885(3) angstrom. The phase is synthesized for the alkali metals K and Rb from KOH (RbOH) + Ba(OH)2.H2O melts. The stoichiometry is apparently not easily varied. The phase is not superconducting down to 2 kelvin.

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页码：9746 / 9748

页数：3

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