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Tunnel spectroscopic measurements in air with a scanning tunnel microscope

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Abstract

Central methodical and hardware problems in taking spectra of different types with a scanning tunneling microscope in air are briefly discussed. Ways to overcome these problems are considered. A procedure for recording a new type of tunneling spectra, namely, voltage-height (U-H) curves, which allow the estimation of the probe-specimen gap, is offered. It is suggested that the current flowing in the course of measurements in air is of electrochemical nature. Different tunnel spectra for metal, oxide, carbon, and polymer materials, including heterogeneous substances, are presented to illustrate the experiments.

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Authors and Affiliations

  1. Moscow State University, Vorob’evy gory, Moscow, 119899, Russia

    S. Yu. Vasil’ev & A. V. Denisov

Authors
  1. S. Yu. Vasil’ev
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  2. A. V. Denisov
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Translated from Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 70, No. 1, 2000, pp. 100–106.

Original Russian Text Copyright © 2000 by Vasil’ev, Denisov.

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Vasil’ev, S.Y., Denisov, A.V. Tunnel spectroscopic measurements in air with a scanning tunnel microscope. Tech. Phys. 45, 99–105 (2000). https://doi.org/10.1134/1.1259578

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  • DOI: https://doi.org/10.1134/1.1259578

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