Mössbauer study of EuBa2(Cu(57Fe))3O7-d superconductor and PrBa2(Cu(57Fe))3O7-d non-superconductor

E. Kuzmann, Z. Homonnay, S. Nagy, M. Gál, A. Vértes

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4 Citations (Scopus)

Abstract

Mössbauer spectroscopy and X-ray diffractometry were used to study non-superconducting PrBa2Cu3(57Fe)O7-d and superconducting EuBa2Cu3(57Fe)O7-d perovskites. Significant differences were observed in the Mössbauer parameters of Eu- and Pr-containing isostructural cuprates. A relatively high isomer shift was found to be characteristic of iron atoms being present at Cu(1) site in the Pr-containing 1-2-3 compound. This can be considered as a consequence of the suppression of superconductivity, by hole-filling, or by hybridization of Pr states with O and Cu states, via charge transfer mechanism between the Cu(1)-O chain and Cu(2)-O plane.

Original languageEnglish
Pages (from-to)328-330
Number of pages3
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume76
Issue number1-4
DOIs
Publication statusPublished - Apr 4 1993

Fingerprint

perovskites
Superconductivity
Isomers
X ray diffraction analysis
cuprates
Superconducting materials
Charge transfer
superconductivity
isomers
Iron
charge transfer
retarding
Spectroscopy
iron
Atoms
shift
spectroscopy
atoms
x rays

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Instrumentation
  • Surfaces and Interfaces

Cite this

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abstract = "M{\"o}ssbauer spectroscopy and X-ray diffractometry were used to study non-superconducting PrBa2Cu3(57Fe)O7-d and superconducting EuBa2Cu3(57Fe)O7-d perovskites. Significant differences were observed in the M{\"o}ssbauer parameters of Eu- and Pr-containing isostructural cuprates. A relatively high isomer shift was found to be characteristic of iron atoms being present at Cu(1) site in the Pr-containing 1-2-3 compound. This can be considered as a consequence of the suppression of superconductivity, by hole-filling, or by hybridization of Pr states with O and Cu states, via charge transfer mechanism between the Cu(1)-O chain and Cu(2)-O plane.",
author = "E. Kuzmann and Z. Homonnay and S. Nagy and M. G{\'a}l and A. V{\'e}rtes",
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T1 - Mössbauer study of EuBa2(Cu(57Fe))3O7-d superconductor and PrBa2(Cu(57Fe))3O7-d non-superconductor

AU - Kuzmann, E.

AU - Homonnay, Z.

AU - Nagy, S.

AU - Gál, M.

AU - Vértes, A.

PY - 1993/4/4

Y1 - 1993/4/4

N2 - Mössbauer spectroscopy and X-ray diffractometry were used to study non-superconducting PrBa2Cu3(57Fe)O7-d and superconducting EuBa2Cu3(57Fe)O7-d perovskites. Significant differences were observed in the Mössbauer parameters of Eu- and Pr-containing isostructural cuprates. A relatively high isomer shift was found to be characteristic of iron atoms being present at Cu(1) site in the Pr-containing 1-2-3 compound. This can be considered as a consequence of the suppression of superconductivity, by hole-filling, or by hybridization of Pr states with O and Cu states, via charge transfer mechanism between the Cu(1)-O chain and Cu(2)-O plane.

AB - Mössbauer spectroscopy and X-ray diffractometry were used to study non-superconducting PrBa2Cu3(57Fe)O7-d and superconducting EuBa2Cu3(57Fe)O7-d perovskites. Significant differences were observed in the Mössbauer parameters of Eu- and Pr-containing isostructural cuprates. A relatively high isomer shift was found to be characteristic of iron atoms being present at Cu(1) site in the Pr-containing 1-2-3 compound. This can be considered as a consequence of the suppression of superconductivity, by hole-filling, or by hybridization of Pr states with O and Cu states, via charge transfer mechanism between the Cu(1)-O chain and Cu(2)-O plane.

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