Quantitatively controlled, room temperature reduction of YBa2Cu3O7-x by electrochemical methods

Michael Schwartz; David Cahen; Michael Rappaport; Gary Hodes

doi:10.1016/0167-2738(89)90408-6

Quantitatively controlled, room temperature reduction of YBa₂Cu₃O₇-x by electrochemical methods

Michael Schwartz
, David Cahen
, Michael Rappaport
, Gary Hodes

Weizmann Institute of Science

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

The oxygen content of YBa₂Cu₃O₇-x can be reduced at room temperature using a liquid electrolyte. The degree of reduction can be controlled by coulometry. The products have been characterized structurally, magnetically and electrically. Reduction broadens the transition to the superconducting state. Two distinct superconducting phases are observed only upon annealing at 300°C. Thus while reduction alone affects the T_c, the distinct lower T_c phase is a result of ordering on the oxygen sublattice.

Original language	English
Pages (from-to)	1137-1142
Number of pages	6
Journal	Solid State Ionics
Volume	32-33
Issue number	PART 2
DOIs	https://doi.org/10.1016/0167-2738(89)90408-6
State	Published - 1989
Externally published	Yes

Funding

This work is supported by the United States-Israel Binational Science Foundation, Jerusalem, Israel. We thank N. Fleischer for helpful discussions.

Funders
United States-Israel Binational Science Foundation

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10.1016/0167-2738(89)90408-6

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abstract = "The oxygen content of YBa2Cu3O7-x can be reduced at room temperature using a liquid electrolyte. The degree of reduction can be controlled by coulometry. The products have been characterized structurally, magnetically and electrically. Reduction broadens the transition to the superconducting state. Two distinct superconducting phases are observed only upon annealing at 300°C. Thus while reduction alone affects the Tc, the distinct lower Tc phase is a result of ordering on the oxygen sublattice.",

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AB - The oxygen content of YBa2Cu3O7-x can be reduced at room temperature using a liquid electrolyte. The degree of reduction can be controlled by coulometry. The products have been characterized structurally, magnetically and electrically. Reduction broadens the transition to the superconducting state. Two distinct superconducting phases are observed only upon annealing at 300°C. Thus while reduction alone affects the Tc, the distinct lower Tc phase is a result of ordering on the oxygen sublattice.

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Quantitatively controlled, room temperature reduction of YBa₂Cu₃O₇-x by electrochemical methods

Abstract

Funding

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