Electron paramagnetic resonance and scanning tunneling microscopy investigations on the formation of F(+) and F(0) Color centers on the surface of thin MgO(001) films

The Journal of Physical Chemistry. B
Martin SterrerHans-Joachim Freund

Abstract

The formation of surface color centers (F(S) centers) by electron bombardment of thin MgO(001) films is investigated using electron paramagnetic resonance and low-temperature scanning tunneling microscopy. At low electron doses both techniques indicate the formation of singly occupied color centers (F(S)(+)), whereas at high electron doses the doubly occupied type (F(S)(0)) is dominant. It is suggested that with increasing electron dose F(S)(+) centers are transformed into F(S)(0). Tunneling spectra of individual F(S)(0) centers reveal a large distribution of energetic positions of occupied and unoccupied states, which is caused by local variations of the coordination number of the defects and explains the broad signals usually detected with integrating spectroscopic techniques.

References

Jan 22, 2002·Physical Review Letters·S SchintkeW D Schneider
Jan 16, 2003·Journal of the American Chemical Society·Davide RicciElio Giamello
Nov 5, 2003·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Gianfranco Pacchioni
Dec 8, 2004·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Martin SterrerErich Knözinger
Aug 18, 2005·Journal of the American Chemical Society·Konstantin M NeymanNotker Rösch
Feb 14, 2006·The Journal of Physical Chemistry. B·Martin SterrerHans-Joachim Freund
Jul 21, 2006·The Journal of Physical Chemistry. B·Mario ChiesaGianfranco Pacchioni
Jul 21, 2006·The Journal of Physical Chemistry. B·Annalisa Del VittoPhilippe Sautet
Jul 21, 2006·The Journal of Physical Chemistry. B·Wayne P HessAlexander L Shluger

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Citations

Nov 3, 2012·Chemical Reviews·Gianfranco Pacchioni, Hajo Freund
Dec 1, 2012·Chemical Reviews·Carmen SousaFrancesc Illas
Sep 27, 2008·Chemical Society Reviews·Hans-Joachim Freund, Gianfranco Pacchioni
Dec 13, 2012·Faraday Discussions·Mihai E Vaida, Thorsten M Bernhardt
Dec 20, 2015·Chemistry : a European Journal·Johannes SchneiderOliver Diwald
Jul 30, 2010·Chemistry : a European Journal·H-J Freund
Jun 28, 2016·Physical Chemistry Chemical Physics : PCCP·Kai Töpfer, Jean Christophe Tremblay
Jul 6, 2016·Journal of the American Chemical Society·Hans-Joachim Freund
Jul 2, 2008·Journal of Physics. Condensed Matter : an Institute of Physics Journal·M S Chen, D W Goodman
Jan 7, 2009·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Christoph Tegenkamp
Oct 18, 2013·Physical Chemistry Chemical Physics : PCCP·Sanliang LingAlexander L Shluger
Jun 12, 2018·Monatshefte für chemie·Piotr Matczak
Nov 17, 2009·Journal of the American Chemical Society·T KönigH-J Freund
Jun 16, 2007·Journal of the American Chemical Society·Keith P McKennaAlexander L Shluger

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