SYNTHESIS, STRUCTURE AND SUPERCONDUCTING PROPERTIES OF METASTABLE Y(Ba//2// minus //xY//x)Cu//3O//7// plus // delta .

Z. Iqbal, F. Reidinger, A. Bose, N. Cipollini, T. J. Taylor, H. Eckhardt, B. L. Ramakrishna, E. W. Ong

Research output: Contribution to journalArticle

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Abstract

The authors report on the synthesis and characterization of a majority (90-95%) phase Y//1//. //5Ba//1//. //5Cu//3O//7// plus // delta (abbreviated as Y 3-3-6), prepared by firing an atomically mixed citrate precursor between 810 degree and 825 degree C for 2 h. X-ray powder diffraction data indicate that Y 3-3-6 is isostructural with its tetragonal La analog. Electron microprobe and thermogravimetry data yield a unit-cell composition Y(Ba//2// minus //xY//x)Cu//3O//7// plus // delta , with x equals 0. 50 and delta equals 0. 10-0. 15 for the parent compound. Specimens of Y 3-3-6 with x equals 0. 5 and 0. 375, which were annealed in O//2 at 1 atm and greater than 3 atm, displayed semiconducting behavior. Filamentary superconductivity, detected electrically and magnetically, with transition onsets at 80 and 60 K respectively, is observed in specimens annealed in 3 atm O//2 at 520 degree C.

Original languageEnglish (US)
Pages (from-to)326-328
Number of pages3
JournalNature
Volume331
Issue number6154
StatePublished - Jan 1 1988
Externally publishedYes

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Thermogravimetry
Powder Diffraction
Citric Acid
X-Ray Diffraction
Electrons
Superconductivity

ASJC Scopus subject areas

  • General

Cite this

Iqbal, Z., Reidinger, F., Bose, A., Cipollini, N., Taylor, T. J., Eckhardt, H., ... Ong, E. W. (1988). SYNTHESIS, STRUCTURE AND SUPERCONDUCTING PROPERTIES OF METASTABLE Y(Ba//2// minus //xY//x)Cu//3O//7// plus // delta . Nature, 331(6154), 326-328.

SYNTHESIS, STRUCTURE AND SUPERCONDUCTING PROPERTIES OF METASTABLE Y(Ba//2// minus //xY//x)Cu//3O//7// plus // delta . / Iqbal, Z.; Reidinger, F.; Bose, A.; Cipollini, N.; Taylor, T. J.; Eckhardt, H.; Ramakrishna, B. L.; Ong, E. W.

In: Nature, Vol. 331, No. 6154, 01.01.1988, p. 326-328.

Research output: Contribution to journalArticle

Iqbal, Z, Reidinger, F, Bose, A, Cipollini, N, Taylor, TJ, Eckhardt, H, Ramakrishna, BL & Ong, EW 1988, 'SYNTHESIS, STRUCTURE AND SUPERCONDUCTING PROPERTIES OF METASTABLE Y(Ba//2// minus //xY//x)Cu//3O//7// plus // delta .', Nature, vol. 331, no. 6154, pp. 326-328.
Iqbal Z, Reidinger F, Bose A, Cipollini N, Taylor TJ, Eckhardt H et al. SYNTHESIS, STRUCTURE AND SUPERCONDUCTING PROPERTIES OF METASTABLE Y(Ba//2// minus //xY//x)Cu//3O//7// plus // delta . Nature. 1988 Jan 1;331(6154):326-328.
Iqbal, Z. ; Reidinger, F. ; Bose, A. ; Cipollini, N. ; Taylor, T. J. ; Eckhardt, H. ; Ramakrishna, B. L. ; Ong, E. W. / SYNTHESIS, STRUCTURE AND SUPERCONDUCTING PROPERTIES OF METASTABLE Y(Ba//2// minus //xY//x)Cu//3O//7// plus // delta . In: Nature. 1988 ; Vol. 331, No. 6154. pp. 326-328.
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