Direct measurements of the local electron transport properties in YBaCuO superconducting thin films

A. D. Kent, I. Maggio-Aprile, Ph Niedermann, Ch Renner, J. M. Triscone, M. G. Karkut, O. Brunner, L. Antognazza, Fischer

    Research output: Contribution to journalArticle

    Abstract

    We have made measurements of the local potential distribution and topography of current carrying Y1Ba2Cu3O6.9 thin films using a scanning tunneling microscope. We have compared the electrostatic potential distribution in the normal state on post-annealed thin films and in-situ prepared films. On post-annealed films we find steps in the potential image indicative of insulating boundaries in the material which occur at boundaries between clusters of grains whereas the in-situ films show a nearly uniform potential drop. These results provide a clear indication of the nature of disorder in these thin films and what length scale ultimately determines the microscopic resistivity.

    Original languageEnglish (US)
    Pages (from-to)1035-1036
    Number of pages2
    JournalPhysica C: Superconductivity and its applications
    Volume162-164
    Issue numberPART 2
    DOIs
    StatePublished - Dec 1989

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Energy Engineering and Power Technology
    • Electrical and Electronic Engineering

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    Kent, A. D., Maggio-Aprile, I., Niedermann, P., Renner, C., Triscone, J. M., Karkut, M. G., Brunner, O., Antognazza, L., & Fischer (1989). Direct measurements of the local electron transport properties in YBaCuO superconducting thin films. Physica C: Superconductivity and its applications, 162-164(PART 2), 1035-1036. https://doi.org/10.1016/0921-4534(89)90580-7