CHEMICAL AND CRYSTALLOGRAPHIC PHASE-BEHAVIOR IN THE BA1-XKXBIO3 SYSTEM

被引：13

作者：

HINKS, DG ^{[1
]}

JORGENSEN, JD ^{[1
]}

RICHARDS, DR ^{[1
]}

PEI, SY ^{[1
]}

ZHENG, Y ^{[1
]}

DABROWSKI, B ^{[1
]}

MITCHELL, AW ^{[1
]}

机构：

[1] ARGONNE NATL LAB,SCI & TECHNOL CTR SUPERCOND,ARGONNE,IL 60439

来源：

JOURNAL OF THE LESS-COMMON METALS | 1991年 / 168卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0022-5088(91)90031-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The chemical behavior of Ba(1-x)K(x)BiO3-delta at high temperature is investigated. The solubility of potassium in BaBiO3 is a strong function of temperature: as the temperature is increased for superconducting Ba0.6K0.4BiO3 (at constant P(O2)), potassium is initially lost from the lattice and is then reincorporated at higher temperatures. The superconducting, oxygen-stoichiometric compositions are probably metastable under ambient conditions. At room temperature, the oxygen-stoichiometric material undergoes a series of crystallographic phase transitions as the potassium content is increased. These transitions may be though of as the logical removal of both the symmetric breathing mode and the rigid tilt distortions of the BiO6 octahedra. Eventually at x = 0.37, all static distortions are removed and the material becomes cubic and superconducting.

引用

页码：19 / 29

页数：11

共 12 条

[1] SUPERCONDUCTIVITY NEAR 30-K WITHOUT COPPER - THE BA0.6K0.4BIO3 PEROVSKITE
CAVA, RJ
BATLOGG, B
KRAJEWSKI, JJ
FARROW, R
RUPP, LW
WHITE, AE
SHORT, K
PECK, WF
KOMETANI, T
[J]. NATURE, 1988, 332 (6167) : 814 - 816
[2] MIXED-VALENT BA2BI3+BI5+O6 - STRUCTURE AND PROPERTIES VS TEMPERATURE
COX, DE
SLEIGHT, AW
[J]. ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1979, 35 (JAN): : 1 - 10
[3] CRYSTAL-STRUCTURE OF BA2BI3+BI5+O6
COX, DE
SLEIGHT, AW
[J]. SOLID STATE COMMUNICATIONS, 1976, 19 (10) : 969 - 973
[4] COX DE, 1976, 1976 P C NEUTR SCATT, P45
[5] SYNTHESIS, STRUCTURE AND SUPERCONDUCTIVITY IN THE BA1-XKXBIO3-Y SYSTEM
HINKS, DG
DABROWSKI, B
JORGENSEN, JD
MITCHELL, AW
RICHARDS, DR
PEI, SY
SHI, DL
[J]. NATURE, 1988, 333 (6176) : 836 - 838
[6] SYNTHESIS OF HIGH-DENSITY BA1-XKXBIO3 SUPERCONDUCTING SAMPLES
HINKS, DG
MITCHELL, AW
ZHENG, Y
RICHARDS, DR
DABROWSKI, B
[J]. APPLIED PHYSICS LETTERS, 1989, 54 (16) : 1585 - 1587
[7] HINKS DG, 1988, PHYSICA C, V156, P477, DOI 10.1016/0921-4534(88)90775-7
[8] ELECTRONIC-STRUCTURE OF THE HIGH-TC SUPERCONDUCTOR BA1-XKXBIO3
MATTHEISS, LF
HAMANN, DR
[J]. PHYSICAL REVIEW LETTERS, 1988, 60 (25) : 2681 - 2684
[9] SUPERCONDUCTIVITY ABOVE 20 K IN THE BA-K-BI-O SYSTEM
MATTHEISS, LF
GYORGY, EM
JOHNSON, DW
[J]. PHYSICAL REVIEW B, 1988, 37 (07): : 3745 - 3746
[10] ELECTRONIC-STRUCTURE OF BAPB1-XBIXO3
MATTHEISS, LF
HAMANN, DR
[J]. PHYSICAL REVIEW B, 1983, 28 (08): : 4227 - 4241

← 1 2 →