Electrochemical and High Pressure Superoxygenation of YCuO2+Xand LaCuO2+xDelafossites

R. J. Cava; M. G. Peck; J. J. Krajewski; S. W. Cheong; H. Y. Hwang

doi:10.1557/JMR.1994.0314

Electrochemical and High Pressure Superoxygenation of YCuO_2+Xand LaCuO_2+xDelafossites

R. J. Cava, M. G. Peck, J. J. Krajewski, S. W. Cheong, H. Y. Hwang

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Abstract

Electrochemical and high pressure oxygenation experiments are described which extend the range of intercalated oxygen content beyond that accessible in 1 atm O₂treatments for the triangular planar cuprate delafossites YCuO_2+xand LaCuO_2+xwith the intention of increasing the hole doping, and filling vacancies in the intercalated oxygen lattice to decrease electrical resistivities. Stabilization of the 2H polytype of YCuO₂through 1% Ca substitution for Y and oxidation conditions for obtaining the pure orthorhombic intercalated oxygen superlattice form of YCuO_2.50are also described. Temperature dependent resistivities for some of the superoxygenated compositions are reported; metallic behavior was not observed.

Original language	English (US)
Pages (from-to)	314-317
Number of pages	4
Journal	Journal of Materials Research
Volume	9
Issue number	2
DOIs	https://doi.org/10.1557/JMR.1994.0314
State	Published - Oct 1994
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Electrochemical and High Pressure Superoxygenation of YCuO2+Xand LaCuO2+xDelafossites",

abstract = "Electrochemical and high pressure oxygenation experiments are described which extend the range of intercalated oxygen content beyond that accessible in 1 atm O2treatments for the triangular planar cuprate delafossites YCuO2+xand LaCuO2+xwith the intention of increasing the hole doping, and filling vacancies in the intercalated oxygen lattice to decrease electrical resistivities. Stabilization of the 2H polytype of YCuO2through 1\% Ca substitution for Y and oxidation conditions for obtaining the pure orthorhombic intercalated oxygen superlattice form of YCuO2.50are also described. Temperature dependent resistivities for some of the superoxygenated compositions are reported; metallic behavior was not observed.",

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year = "1994",

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doi = "10.1557/JMR.1994.0314",

language = "English (US)",

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T1 - Electrochemical and High Pressure Superoxygenation of YCuO2+Xand LaCuO2+xDelafossites

AU - Cava, R. J.

AU - Peck, M. G.

AU - Krajewski, J. J.

AU - Cheong, S. W.

AU - Hwang, H. Y.

PY - 1994/10

Y1 - 1994/10

N2 - Electrochemical and high pressure oxygenation experiments are described which extend the range of intercalated oxygen content beyond that accessible in 1 atm O2treatments for the triangular planar cuprate delafossites YCuO2+xand LaCuO2+xwith the intention of increasing the hole doping, and filling vacancies in the intercalated oxygen lattice to decrease electrical resistivities. Stabilization of the 2H polytype of YCuO2through 1% Ca substitution for Y and oxidation conditions for obtaining the pure orthorhombic intercalated oxygen superlattice form of YCuO2.50are also described. Temperature dependent resistivities for some of the superoxygenated compositions are reported; metallic behavior was not observed.

AB - Electrochemical and high pressure oxygenation experiments are described which extend the range of intercalated oxygen content beyond that accessible in 1 atm O2treatments for the triangular planar cuprate delafossites YCuO2+xand LaCuO2+xwith the intention of increasing the hole doping, and filling vacancies in the intercalated oxygen lattice to decrease electrical resistivities. Stabilization of the 2H polytype of YCuO2through 1% Ca substitution for Y and oxidation conditions for obtaining the pure orthorhombic intercalated oxygen superlattice form of YCuO2.50are also described. Temperature dependent resistivities for some of the superoxygenated compositions are reported; metallic behavior was not observed.

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Electrochemical and High Pressure Superoxygenation of YCuO_2+Xand LaCuO_2+xDelafossites

Abstract

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