Electronic structure of YBa2(Cu1-xNix)3O7 in terms of the real-space-scattering coherent-potential approximation

L. Szunyogh, P. Weinberger, R. Podloucky

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Effects of Ni cation substitution on the copper sites are examined in the Y-Ba-Cu-O system in the concentration range 0 x 0.15. The ferromagnetic and two types of antiferromagnetic substitution are considered for both copper sublattices. Pronounced differences between these types of doping in terms of partial densities of state (DOS), the Fermi level, and the DOS at the Fermi level are found only in the case when the Cu(1) sublattice is doped. The calculated x-ray emission and x-ray photoemission spectra show distinct differences between chain or plane alloying; however, they are clearly too insensitive to provide information about the preferred type of the magnetic arrangement.

Original languageEnglish
Pages (from-to)519-522
Number of pages4
JournalPhysical Review B
Volume43
Issue number1
DOIs
Publication statusPublished - 1991

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Coherent scattering
coherent scattering
Fermi level
sublattices
Electronic structure
Copper
Substitution reactions
substitutes
electronic structure
X rays
copper
Photoemission
approximation
Alloying
alloying
Cations
x rays
photoelectric emission
Positive ions
Doping (additives)

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Electronic structure of YBa2(Cu1-xNix)3O7 in terms of the real-space-scattering coherent-potential approximation. / Szunyogh, L.; Weinberger, P.; Podloucky, R.

In: Physical Review B, Vol. 43, No. 1, 1991, p. 519-522.

Research output: Contribution to journalArticle

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AB - Effects of Ni cation substitution on the copper sites are examined in the Y-Ba-Cu-O system in the concentration range 0 x 0.15. The ferromagnetic and two types of antiferromagnetic substitution are considered for both copper sublattices. Pronounced differences between these types of doping in terms of partial densities of state (DOS), the Fermi level, and the DOS at the Fermi level are found only in the case when the Cu(1) sublattice is doped. The calculated x-ray emission and x-ray photoemission spectra show distinct differences between chain or plane alloying; however, they are clearly too insensitive to provide information about the preferred type of the magnetic arrangement.

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