Studies of Mn$_{12}$-Ph Single Molecule Magnets by LTSTS

ORAL

Abstract

We study Mn$_{12}$O$_{12}$(C$_6$H$_5$COO)$_{16}$(H$_2$O)$_4$ (Mn$_{12}$-Ph) single-molecule magnets on a Cu(111) surface using scanning tunneling microscopy and scanning tunneling spectroscopy (LT-STS). We report the observation of Mn$_{12}$-Ph in isolation and in thin films, deposited through vacuum spray deposition onto clean Cu(111). The local tunneling current observed within the molecular structure shows a strong bias voltage dependency, which is distinct from that of the Cu surface. We will explore these I vs. V curves in detail and present a phenomenological explanation for the observed behavior.

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Authors

  • K. Reaves

    • Materials Science and Engineering and Department of Physics and Astronomy, Texas A\&M University; WPI-AIMR, Tohoku University, Japan

  • P. Han

    • WPI-AIMR, Tohoku University, Japan

  • K. Iwaya

    • WPI-AIMR, Tohoku University, Japan

  • T. Hitosugi

    • WPI-AIMR, Tohoku University, Japan

  • D. Packwood

    • WPI-AIMR, Tohoku University, Japan

  • H.G. Katzgraber

    • Materials Science and Engineering and Department of Physics and Astronomy, Texas A\&M University

  • H. Zhao

    • Department of Chemistry, Texas A\&M University

  • K.R. Dunbar

    • Department of Chemistry, Texas A\&M University

  • K. Kim

    • WPI-AIMR, Tohoku University

  • W. Teizer

    • Materials Science and Engineering and Department of Physics and Astronomy, Texas A\&M University; WPI-AIMR, Tohoku University, Japan