Structural investigation of the EuBa2Cu3O7-δ high TC superconductor by 151Eu, 119Sn, 57Fe and 57Co Mössbauer spectroscopy

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

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

By introducing 151Eu, 119Sn, 57Fe and 57Co into the orthorhombic perovskite lattice of YBa2Cu3O7-δ high TC superconductors, the localization and distribution of these probe nuclides were investigated by Mössbauer spectroscopy in order to get further information on the structure of high TC superconductors. The Mössbauer spectra of superconductor samples were considered as superpositions of subspectra belonging to Mössbauer nuclides occupying different sites with various surroundings in the lattice. The 151Eu spectra were evaluated as singlets corresponding to EuIII situated at the normal rare earth site. The 119Sn spectra were decomposed into a singlet and a doublet, which were associated with SnIV at the Cu(2) and the Cu(1) sites, respectively. The 57Fe and 57Co spectra could be fitted with three doublets representing FeIII and FeIV at the Cu(1) site as well as FeIII at the Cu(2) site. Comparing the relative area fractions of Mössbauer lines corresponding to different Cu sites it was suggested that iron and cobalt prefer the Cu(1) site, while tin prefers the Cu(2) site in these superconductors.

Original languageEnglish
Pages (from-to)51-64
Number of pages14
JournalSpectrochimica Acta Part A: Molecular Spectroscopy
Volume48
Issue number1
DOIs
Publication statusPublished - 1992

Fingerprint

Superconducting materials
Spectroscopy
Isotopes
Perovskite
Rare earths
Tin
Cobalt
Iron

ASJC Scopus subject areas

  • Engineering(all)

Cite this

@article{b6c15b1e18d54f62bde09c2a0e2f70a7,
title = "Structural investigation of the EuBa2Cu3O7-δ high TC superconductor by 151Eu, 119Sn, 57Fe and 57Co M{\"o}ssbauer spectroscopy",
abstract = "By introducing 151Eu, 119Sn, 57Fe and 57Co into the orthorhombic perovskite lattice of YBa2Cu3O7-δ high TC superconductors, the localization and distribution of these probe nuclides were investigated by M{\"o}ssbauer spectroscopy in order to get further information on the structure of high TC superconductors. The M{\"o}ssbauer spectra of superconductor samples were considered as superpositions of subspectra belonging to M{\"o}ssbauer nuclides occupying different sites with various surroundings in the lattice. The 151Eu spectra were evaluated as singlets corresponding to EuIII situated at the normal rare earth site. The 119Sn spectra were decomposed into a singlet and a doublet, which were associated with SnIV at the Cu(2) and the Cu(1) sites, respectively. The 57Fe and 57Co spectra could be fitted with three doublets representing FeIII and FeIV at the Cu(1) site as well as FeIII at the Cu(2) site. Comparing the relative area fractions of M{\"o}ssbauer lines corresponding to different Cu sites it was suggested that iron and cobalt prefer the Cu(1) site, while tin prefers the Cu(2) site in these superconductors.",
author = "E. Kuzmann and Z. Homonnay and S. Nagy and A. V{\'e}rtes and I. Hal{\'a}sz and M. G{\'a}l",
year = "1992",
doi = "10.1016/0584-8539(92)80198-6",
language = "English",
volume = "48",
pages = "51--64",
journal = "Spectrochimica Acta - Part A Molecular Spectroscopy",
issn = "0584-8539",
publisher = "Pergamon Press Ltd.",
number = "1",

}

TY - JOUR

T1 - Structural investigation of the EuBa2Cu3O7-δ high TC superconductor by 151Eu, 119Sn, 57Fe and 57Co Mössbauer spectroscopy

AU - Kuzmann, E.

AU - Homonnay, Z.

AU - Nagy, S.

AU - Vértes, A.

AU - Halász, I.

AU - Gál, M.

PY - 1992

Y1 - 1992

N2 - By introducing 151Eu, 119Sn, 57Fe and 57Co into the orthorhombic perovskite lattice of YBa2Cu3O7-δ high TC superconductors, the localization and distribution of these probe nuclides were investigated by Mössbauer spectroscopy in order to get further information on the structure of high TC superconductors. The Mössbauer spectra of superconductor samples were considered as superpositions of subspectra belonging to Mössbauer nuclides occupying different sites with various surroundings in the lattice. The 151Eu spectra were evaluated as singlets corresponding to EuIII situated at the normal rare earth site. The 119Sn spectra were decomposed into a singlet and a doublet, which were associated with SnIV at the Cu(2) and the Cu(1) sites, respectively. The 57Fe and 57Co spectra could be fitted with three doublets representing FeIII and FeIV at the Cu(1) site as well as FeIII at the Cu(2) site. Comparing the relative area fractions of Mössbauer lines corresponding to different Cu sites it was suggested that iron and cobalt prefer the Cu(1) site, while tin prefers the Cu(2) site in these superconductors.

AB - By introducing 151Eu, 119Sn, 57Fe and 57Co into the orthorhombic perovskite lattice of YBa2Cu3O7-δ high TC superconductors, the localization and distribution of these probe nuclides were investigated by Mössbauer spectroscopy in order to get further information on the structure of high TC superconductors. The Mössbauer spectra of superconductor samples were considered as superpositions of subspectra belonging to Mössbauer nuclides occupying different sites with various surroundings in the lattice. The 151Eu spectra were evaluated as singlets corresponding to EuIII situated at the normal rare earth site. The 119Sn spectra were decomposed into a singlet and a doublet, which were associated with SnIV at the Cu(2) and the Cu(1) sites, respectively. The 57Fe and 57Co spectra could be fitted with three doublets representing FeIII and FeIV at the Cu(1) site as well as FeIII at the Cu(2) site. Comparing the relative area fractions of Mössbauer lines corresponding to different Cu sites it was suggested that iron and cobalt prefer the Cu(1) site, while tin prefers the Cu(2) site in these superconductors.

UR - http://www.scopus.com/inward/record.url?scp=24544436560&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=24544436560&partnerID=8YFLogxK

U2 - 10.1016/0584-8539(92)80198-6

DO - 10.1016/0584-8539(92)80198-6

M3 - Article

AN - SCOPUS:24544436560

VL - 48

SP - 51

EP - 64

JO - Spectrochimica Acta - Part A Molecular Spectroscopy

JF - Spectrochimica Acta - Part A Molecular Spectroscopy

SN - 0584-8539

IS - 1

ER -