Morphological and molecular processes observed using scanning tunneling microscopy on organic conductors

Authors

  • Dr. Sergei N. Magonov,

    Corresponding author
    1. Freiburger Materialforschungszentrum (FMF) der Albert-Ludwigs Universität Stefan-Meier Strasse 31 A, W-7800 Freiburg (FRG)
    • Freiburger Materialforschungszentrum (FMF) der Albert-Ludwigs Universität Stefan-Meier Strasse 31 A. W-7800 Freiburg (FRG)
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  • Dr. Georg Bar,

    1. Freiburger Materialforschungszentrum (FMF) der Albert-Ludwigs Universität Stefan-Meier Strasse 31 A, W-7800 Freiburg (FRG)
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  • Arkadij Y. Gorenberg,

    1. Institute of Chemical Physics of the Russian Academy of Sciences ul. Kosygina 4, Moscow 117 977 (Russia)
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  • Prof. Eduard B. Yagubskii,

    1. Institute of Chemical Physics of the Russian Academy of Sciences ul. Kosygina 4, Moscow 117 977 (Russia)
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  • Prof. Hans-Joachim Cantow

    1. Freiburger Materialforschungszentrum (FMF) der Albert-Ludwigs Universität Stefan-Meier Strasse 31 A, W-7800 Freiburg (FRG)
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Abstract

Step-by-step surface layer restoration in organic superconducting salts has been observed using STM. The Figure shows a step, approximately 1.8 nm in height, with an uneven boundary. Over a period of time the step edge is seen to “heal” under positive tip bias, where the current flows from the tip to the sample. Under reversed bias the degradation of the surface has been observed.

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