Skip to main content
×
Home
    • Aa
    • Aa

Electrochemical and high pressure superoxygenation of YCuO2+x and LaCuO2+x delafossites

  • R.J. Cava (a1), W.F. Peck (a1), J.J. Krajewski (a1), S-W. Cheong (a1) and H.Y. Hwang (a1)...
Abstract

Electrochemical and high pressure oxygenation experiments are described which extend the range of intercalated oxygen content beyond that accessible in 1 atm O2 treatments for the triangular planar cuprate delafossites YCuO2+x and LaCuO2+x, with 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 YCuO2 through 1% Ca substitution for Y and oxidation conditions for obtaining the pure orthorhombic intercalated oxygen superlattice form of YCuO2.50 are also described. Temperature dependent resistivities for some of the superoxygenated compositions are reported; metallic behavior was not observed.

Copyright
References
Hide All
1Cava R. J., Zandbergen H. W., Ramirez A. P., Takagi H., Chen C. T., Krajewski J. J., Peck W. F. Jr., Waszczak J. V., Miegs G., and Schneemeyer L. F., J. Solid State Chem. 104, 437 (1993).
2Ramirez A. P., Walstedt R. E., Cava R. J., Krajewski J. J., Peck W. F. Jr., and Bell R., unpublished.
3Mattheiss L. F., unpublished.
4Natali Sora I., Huang Q., Santoro A., Cava R. J., Krajewski J. J., and Peck W. F. Jr., unpublished.
5Wattiaux A., Park J-C., Grenier J-C., and Pouchard M., C. R. Acad. Sci. Paris 310, 1047 (1990).
6Demorgues A., Weill F., Grenier J. C., Wattiaux A., and Pouchard M., Physica C 192, 425 (1992).
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Journal of Materials Research
  • ISSN: 0884-2914
  • EISSN: 2044-5326
  • URL: /core/journals/journal-of-materials-research
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 12 *
Loading metrics...

Abstract views

Total abstract views: 98 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 21st October 2017. This data will be updated every 24 hours.