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Atomic and Electronic Structure of Some Exotic Surfaces Revealed by Scanning Tunneling Microscopy

  • M. Tsukada
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 114)

Abstract

A first-principles theoretical method of simulation for scanning tunneling microscopy image and spectroscopy data is presented based on the local density functional approach. The theoretical simulation plays very essential role to decode all the rich and detailed information from experiments, and to clarify effects of the microscopic structure of the tip. The method is applied to some interesting surface systems such as graphite, Si(100) dimer surfaces and step structures, Si(lll)\(\sqrt 3 \times \sqrt 3 \) — Ag surface. The mechanism to achieve the atomic resolution by the tip with the curvature of several hundreds of Angstroms is clarified and it is discussed how the atomic structure of the tip influences the STM image. Case studies show that naive interpretation of the STM image sometimes fails. Exotic phenomena such as transparency of the adsorbed molecule and a moire pattern formation are discussed.

Keywords

Tunnel Current Scanning Tunneling Microscopy Image Theoretical Simulation Benzene Molecule Moire Pattern 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1993

Authors and Affiliations

  • M. Tsukada
    • 1
  1. 1.Department of Physics, Faculty of ScienceUniversity of TokyoBunkyo-ku, Tokyo 113Japan

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