Superconductivity in the BaPb1-xBix/2Sbx/2O3 system

被引：10

作者：

Fu, WT

Drost, RJ

机构：

[1] Leiden Univ, Gorlaeus Labs, Leiden Inst Chem, NL-2300 Leiden, Netherlands

[2] Leiden Univ, Kamerlingh Onnes Lab, NL-2300 Leiden, Netherlands

来源：

PHYSICA C | 1998年 / 304卷 / 1-2期

关键词：

synthesis; metal-insulator transition; AC susceptibility; electrical resistivity;

D O I：

10.1016/S0921-4534(98)00267-6

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The system BaPb1-xBix/2Sbx/2O3 has been synthesized and investigated. The parent compound, BaBi0.5Sb0.5O3, is a rhombohedral perovskite, having an ordered arrangement of Bi3+ and Sb5+ ions. Upon Pb-doping the ordered arrangement vanishes at x approximate to 0.60, but the system remains insulating. Superconductivity occurs in the composition range of about 0.2 less than or equal to x < 0.4 with the T-c (magnetically determined) ranging from 2 K to 6 K. The most important feature of this system is that the Pi exists only as Bi3+. Therefore, the occurrence of superconductivity may shed the light on whether the pairing mechanism in the bismuthate superconductors can be described in terms of local pairs. (C) 1998 Published by Elsevier Science B.V. All rights reserved.

引用

收藏

页码：51 / 54

页数：4

相关论文

共 23 条

[1] LEAD-NMR STUDY OF BAPB1-X(SB/BI)(X)O-3 [J].

BENSCHOP, FJM ;

BROM, HB ;

ZANDBERGEN, HW ;

CAVA, RJ .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1994, 235 :2527-2528

[2] NONSUPERCONDUCTING BASN1-XSBXO3 - THE 5S-ORBITAL ANALOG OF BAPB1-XBIXO3 [J].

CAVA, RJ ;

GAMMEL, P ;

BATLOGG, B ;

KRAJEWSKI, JJ ;

PECK, WF ;

RUPP, LW ;

FELDER, R ;

VANDOVER, RB .

PHYSICAL REVIEW B, 1990, 42 (07) :4815-4818

[3] SUPERCONDUCTIVITY NEAR 30-K WITHOUT COPPER - THE BA0.6K0.4BIO3 PEROVSKITE [J].

CAVA, RJ ;

BATLOGG, B ;

KRAJEWSKI, JJ ;

FARROW, R ;

RUPP, LW ;

WHITE, AE ;

SHORT, K ;

PECK, WF ;

KOMETANI, T .

NATURE, 1988, 332 (6167) :814-816

[4]

Cox D. E., 1976, Proceedings of the Conference on Neutron Scattering, P45

[5] CRYSTAL-STRUCTURE OF BA2BI3+BI5+O6 [J].

COX, DE ;

SLEIGHT, AW .

SOLID STATE COMMUNICATIONS, 1976, 19 (10) :969-973

[6] FREE-ELECTRON BEHAVIOR OF CARRIERS IN ANTIMONY-DOPED TIN(IV) OXIDE - A STUDY BY ELECTRON-SPECTROSCOPY [J].

COX, PA ;

EGDELL, RG ;

HARDING, C ;

ORCHARD, AF ;

PATTERSON, WR ;

TAVENER, PJ .

SOLID STATE COMMUNICATIONS, 1982, 44 (06) :837-839

[7] A COMPARATIVE-STUDY OF (BI)POLARONIC (SUPER)CONDUCTIVITY IN HIGH-TC SUPERCONDUCTING AND LOW-TC SUPERCONDUCTING OXIDES [J].

DEJONGH, LJ .

PHYSICA C, 1988, 152 (02) :171-216

[8] ELECTRONIC-STRUCTURE OF SB IN BAPB1-XSBXO3 SUPERCONDUCTING COMPOUNDS [J].

EIBSCHUTZ, M ;

REIFF, WM ;

CAVA, RJ ;

KRAJEWSKI, JJ ;

PECK, WF .

APPLIED PHYSICS LETTERS, 1990, 56 (23) :2339-2341

[9] On the structure of BaTl0.5Sb0.5O3: An ordered perovskite [J].

Fu, WT ;

IJdo, DJW .

JOURNAL OF SOLID STATE CHEMISTRY, 1997, 128 (02) :323-325

[10] CRYSTAL-CHEMISTRY OF BISMUTHATE-BASED SUPERCONDUCTORS - THE ORIGIN OF (LOCAL) CHARGE DISPROPORTIONATION [J].

FU, WT .

PHYSICA C, 1995, 250 (1-2) :67-74