Characterization of doped Nd-based superconductors

W. D. Arnett, D. R. Zint, C. E. Hamrin, R. J. De Angelis, K. Okazaki, D. K. Kim, X. X. Ding, W. D. Ehmann, J. W. Brill, T. N. O'Neal, L. E. DeLong, M. S. Osofsky, V. Le Tourneau, S. A. Wolf

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Y-, Dy-, and Gd-doped neodymium (Nd) superconductors (RE0.1Nd0.9Ba2-Cu3Oy) exhibited sharp resistivity transitions at 92 K. DC susceptibility measurements gave a common curve with diamagnetic onsets at 93 K and transitions complete at ≈50 K. Lattice constants for an assumed orthorhombic structure were calculated from X-ray diffraction measurements. These values were used to create a simulated diffraction pattern with 2 θ values and relative intensities that agreed well with observed values. Oxygen contents determined by instrumental neutron activation analysis, ranged from 14.7 to 15.1±0.1 wt%(6.59≤y in Oy≤6.73). This range of oxygen content for YBa2Cu3Oy gives ≈50-60 K transitions in marked contrast to the 92 K (midpoint) values for the materials of this study.

Original languageEnglish (US)
Pages (from-to)427-440
Number of pages14
JournalJournal of Superconductivity
Volume1
Issue number4
DOIs
StatePublished - Dec 1 1988

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Keywords

  • lanthanides
  • neodymium
  • oxygen
  • superconductors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Arnett, W. D., Zint, D. R., Hamrin, C. E., De Angelis, R. J., Okazaki, K., Kim, D. K., Ding, X. X., Ehmann, W. D., Brill, J. W., O'Neal, T. N., DeLong, L. E., Osofsky, M. S., Le Tourneau, V., & Wolf, S. A. (1988). Characterization of doped Nd-based superconductors. Journal of Superconductivity, 1(4), 427-440. https://doi.org/10.1007/BF00618599