Influence of magnetic rare-earth ion substitution on the magnetic susceptibility of high-TC superconductors

Fulin Zuo, B. R. Patton, D. L. Cox, S. I. Lee, Y. Song, J. P. Golben, X. D. Chen, S. Y. Lee, Y. Cao, Y. Lu, J. R. Gaines, J. C. Garland, A. J. Epstein

Research output: Contribution to journalArticle

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Abstract

We report detailed magnetic-susceptibility studies for the oxygen-deficient perovskite superconductors MBa2Cu3O7- (M=Y,Gd,Er,Ho). Normal-state behavior above Tc shows weak ferromagnetic (antiferromagnetic) tendencies for M=Y,Gd (M=Er,Ho), with 87% of the free-ion moment for M=Gd,Er,Ho. The estimated Fermi-level density of states is 6.4 states/eV Cu for M=Y,Gd, which is twice the band-structure estimate. The superconducting state shows a 20% or more flux exclusion at small field. The Curie contributions for M=Gd,Er,Ho are weakened for T<Tc due to diamagnetic screening. The local moments appear to have little or no effect on the superconducting state. These effects are well described by a simple theoretical model.

Original languageEnglish (US)
Pages (from-to)3603-3607
Number of pages5
JournalPhysical Review B
Volume36
Issue number7
DOIs
StatePublished - Jan 1 1987
Externally publishedYes

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Fermi level
Magnetic susceptibility
Band structure
Perovskite
Rare earths
Superconducting materials
Screening
Substitution reactions
rare earth elements
Ions
substitutes
Oxygen
Fluxes
moments
magnetic permeability
exclusion
ions
tendencies
screening
oxygen

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Zuo, F., Patton, B. R., Cox, D. L., Lee, S. I., Song, Y., Golben, J. P., ... Epstein, A. J. (1987). Influence of magnetic rare-earth ion substitution on the magnetic susceptibility of high-TC superconductors. Physical Review B, 36(7), 3603-3607. https://doi.org/10.1103/PhysRevB.36.3603

Influence of magnetic rare-earth ion substitution on the magnetic susceptibility of high-TC superconductors. / Zuo, Fulin; Patton, B. R.; Cox, D. L.; Lee, S. I.; Song, Y.; Golben, J. P.; Chen, X. D.; Lee, S. Y.; Cao, Y.; Lu, Y.; Gaines, J. R.; Garland, J. C.; Epstein, A. J.

In: Physical Review B, Vol. 36, No. 7, 01.01.1987, p. 3603-3607.

Research output: Contribution to journalArticle

Zuo, F, Patton, BR, Cox, DL, Lee, SI, Song, Y, Golben, JP, Chen, XD, Lee, SY, Cao, Y, Lu, Y, Gaines, JR, Garland, JC & Epstein, AJ 1987, 'Influence of magnetic rare-earth ion substitution on the magnetic susceptibility of high-TC superconductors', Physical Review B, vol. 36, no. 7, pp. 3603-3607. https://doi.org/10.1103/PhysRevB.36.3603
Zuo, Fulin ; Patton, B. R. ; Cox, D. L. ; Lee, S. I. ; Song, Y. ; Golben, J. P. ; Chen, X. D. ; Lee, S. Y. ; Cao, Y. ; Lu, Y. ; Gaines, J. R. ; Garland, J. C. ; Epstein, A. J. / Influence of magnetic rare-earth ion substitution on the magnetic susceptibility of high-TC superconductors. In: Physical Review B. 1987 ; Vol. 36, No. 7. pp. 3603-3607.
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