Lead-NMR study of BaPb1-x(Sb/Bi)xO3

F. J.M. Benschop; H. B. Brom; H. W. Zandbergen; R. J. Cava

doi:10.1016/0921-4534(94)92484-8

Lead-NMR study of BaPb_{1-x(Sb/Bi)_xO₃}

F. J.M. Benschop, H. B. Brom, H. W. Zandbergen, R. J. Cava

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Abstract

Recent Mössbauer experiments on BaPb_1-xSb_xO₃ revealed only the presence of Sb(V), while in BaPb_1-xBi_xO₃ 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 BaPb_1-xSb_xO₃ clearly show the charge disproportionation of lead, while in BaPb_1-xBi_xO₃ 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 BaPb_1-xSb_xO₃ is proposed with a miscibility gap in the range of 0.35 < x < 0.50.

Original language	English (US)
Pages (from-to)	2527-2528
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	235-240
Issue number	PART 4
DOIs	https://doi.org/10.1016/0921-4534(94)92484-8
State	Published - Dec 1994
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/0921-4534(94)92484-8

Cite this

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title = "Lead-NMR study of BaPb1-x(Sb/Bi)xO3",

abstract = "Recent M{\"o}ssbauer 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.",

author = "Benschop, {F. J.M.} and Brom, {H. B.} and Zandbergen, {H. W.} and Cava, {R. J.}",

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journal = "Physica C: Superconductivity and its applications",

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T1 - Lead-NMR study of BaPb1-x(Sb/Bi)xO3

AU - Benschop, F. J.M.

AU - Brom, H. B.

AU - Zandbergen, H. W.

AU - Cava, R. J.

PY - 1994/12

Y1 - 1994/12

N2 - Recent Mössbauer 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.

AB - Recent Mössbauer 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.

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JF - Physica C: Superconductivity and its applications

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Lead-NMR study of BaPb_{1-x(Sb/Bi)_xO₃}

Abstract

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