Identification of a second phase in La2-xSrxCuO4 superconductors resulting from precursor lanthanum deficiency

E. A. Payzant; H. W. King; J. B. Wallace

doi:10.1016/0038-1098(90)90864-8

Identification of a second phase in La_2-xSr_xCuO₄ superconductors resulting from precursor lanthanum deficiency

E. A. Payzant, H. W. King, J. B. Wallace

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6 Scopus citations

Abstract

In synthesizing La_2-xSr_xCuO₄ ceramic superconductors through the solid state reaction of precursor powders, failure to account for hydration of La₂O₃ to La(OH)₃ produced an overall La³⁺ ion deficiency. This deficiency resulted in the formation of a significant amount of a second phase, which was determined by X-ray diffraction to be an oxygen deficient perovskite of the type La_2-xSr_xCu₂O₅.

Original language	English
Pages (from-to)	409-410
Number of pages	2
Journal	Solid State Communications
Volume	76
Issue number	3
DOIs	https://doi.org/10.1016/0038-1098(90)90864-8
State	Published - Oct 1990
Externally published	Yes

Funding

from the Natural Sciences and Engineering Research Council of Canada.

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10.1016/0038-1098(90)90864-8

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title = "Identification of a second phase in La2-xSrxCuO4 superconductors resulting from precursor lanthanum deficiency",

abstract = "In synthesizing La2-xSrxCuO4 ceramic superconductors through the solid state reaction of precursor powders, failure to account for hydration of La2O3 to La(OH)3 produced an overall La3+ ion deficiency. This deficiency resulted in the formation of a significant amount of a second phase, which was determined by X-ray diffraction to be an oxygen deficient perovskite of the type La2-xSrxCu2O5.",

author = "Payzant, {E. A.} and King, {H. W.} and Wallace, {J. B.}",

year = "1990",

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AU - Payzant, E. A.

AU - King, H. W.

AU - Wallace, J. B.

PY - 1990/10

Y1 - 1990/10

N2 - In synthesizing La2-xSrxCuO4 ceramic superconductors through the solid state reaction of precursor powders, failure to account for hydration of La2O3 to La(OH)3 produced an overall La3+ ion deficiency. This deficiency resulted in the formation of a significant amount of a second phase, which was determined by X-ray diffraction to be an oxygen deficient perovskite of the type La2-xSrxCu2O5.

AB - In synthesizing La2-xSrxCuO4 ceramic superconductors through the solid state reaction of precursor powders, failure to account for hydration of La2O3 to La(OH)3 produced an overall La3+ ion deficiency. This deficiency resulted in the formation of a significant amount of a second phase, which was determined by X-ray diffraction to be an oxygen deficient perovskite of the type La2-xSrxCu2O5.

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U2 - 10.1016/0038-1098(90)90864-8

DO - 10.1016/0038-1098(90)90864-8

M3 - Article

AN - SCOPUS:0025508744

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JO - Solid State Communications

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ER -

Identification of a second phase in La_2-xSr_xCuO₄ superconductors resulting from precursor lanthanum deficiency

Abstract

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