Controlled room-temperature reduction of YBa2Cu3O7-x: A synthetic route to metastable superconducting phases

Michael Schwartz; Michael Rappaport; Gary Hodes; Shimon Reich; David Cahen

doi:10.1016/0167-577x(89)90042-6

Controlled room-temperature reduction of YBa₂Cu₃O_7-x: A synthetic route to metastable superconducting phases

Michael Schwartz
, Michael Rappaport
, Gary Hodes
, Shimon Reich
, David Cahen

Weizmann Institute of Science

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

11 Scopus citations

Abstract

The oxygen content of YBa₂Cu₃O_7-xcan be reduced electrochemically in a non-aqueous electrolyte at room temperature. The products are characterized by X-ray powder diffraction, magnetic susceptibility and electrical conductivity. The transition to the superconducting state is broadened upon reduction. Subsequent annealing of the reduced samples yields materials with distinct 90, 60 and 20 K transitions. These results indicate that the oxygen content is the primary factor in controlling T_c.

Original language	English
Pages (from-to)	411-414
Number of pages	4
Journal	Materials Letters
Volume	7
Issue number	12
DOIs	https://doi.org/10.1016/0167-577x(89)90042-6
State	Published - Mar 1989
Externally published	Yes

Funding

This work is supportedb y the United States-Israel Binational ScienceF oundation, Jerusalem, Israel. We thank N. Fleischer for advice on electrochemistry.

Funders
United States-Israel Binational Science Foundation

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10.1016/0167-577x(89)90042-6

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abstract = "The oxygen content of YBa2Cu3O7-xcan be reduced electrochemically in a non-aqueous electrolyte at room temperature. The products are characterized by X-ray powder diffraction, magnetic susceptibility and electrical conductivity. The transition to the superconducting state is broadened upon reduction. Subsequent annealing of the reduced samples yields materials with distinct 90, 60 and 20 K transitions. These results indicate that the oxygen content is the primary factor in controlling Tc.",

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Controlled room-temperature reduction of YBa₂Cu₃O_7-x: A synthetic route to metastable superconducting phases

Abstract

Funding

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