LEAD-NMR STUDY OF BAPB1-X(SB/BI)(X)O-3

被引：11

作者：

BENSCHOP, FJM

BROM, HB

ZANDBERGEN, HW

CAVA, RJ

机构：

[1] LEIDEN UNIV,KAMERLINGH ONNES LAB,2300 RA LEIDEN,NETHERLANDS

[2] DELFT UNIV TECHNOL,NATL CTR HIGH RESOLUT ELECTRON MICROSCOPY,2628 AL DELFT,NETHERLANDS

[3] AT&T BELL LABS,MURRAY HILL,NJ 07974

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1994年 / 235卷

关键词：

D O I：

10.1016/0921-4534(94)92484-8

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Recent Mossbauer experiments on BaPb1-xSbxO3 revealed only the presence of Sb(V), while in BaPb1-xBixO3 in the semiconducting phase the Bi-charge disproportionation is well established. We find a similar asymmetry in the NMR spectra. The NMR spectra on semiconducting BaPb1-xSbxO3 clearly show the charge disproportionation of lead, while in BaPb1-xBixO3 in the semiconducting phase only Pb(IV) is observed. The metallic phases of the Sb-doped compounds show one lead resonance line. Based on the NMR spectra and the elemental analysis a phase diagram for BaPb1-xSbxO3 is proposed with a miscibility gap in the range of 0.35 < x < 0.50.

引用

页码：2527 / 2528

页数：2

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