Scanning tunneling spectroscopy (STS) of single atoms and molecules

E. L. Wolf

in Principles of Electron Tunneling Spectroscopy

Second edition

Published in print November 2011 | ISBN: 9780199589494
Published online January 2012 | e-ISBN: 9780191731334 | DOI:

Series: International Series of Monographs on Physics

Scanning tunneling spectroscopy (STS) of single atoms and molecules

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The observation of single atoms on a metallic surface is described and treated theoretically. Friedel oscillations of electron density in the metal surrounding an impurity are observed and treated quantitatively. The quantum corral experiment of Eigler and colleagues is treated, extended into the quantum mirage mode with an elliptical encirclement of transition metal atoms on a surface like copper. Pair breaking single adatoms of Mn and Cr on Pb are studied in topography and scanning tunneling spectroscopy. A spectroscopy of Kondo and spin-flip scattering is described in connection with naturally occurring Anderson moments at the edge of Schottky barrier junctions on Si:As. The spectroscopy of magnetic adatoms on copper and similar surfaces is described and analysed in terms of a Fano parameter. Imaging of the intensity of vibrational motions in adsorbed molecules on clean metal surfaces, such as acetylene on Cu is presented. The use of STM tips decorated with single molecules.

Keywords: corral; mirage; magnetic adatom; Friedel; Kondo; Fano; vibration; Xe; Eigler

Chapter.  9394 words.  Illustrated.

Subjects: Condensed Matter Physics

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