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The Change of the LMM Auger Spectra in 3d-Metals Due to Oxidation and Its Correlation with the Change of the Atomic Magnetic Moment

Published online by Cambridge University Press:  15 November 2005

Olga R. Zheltysheva ,
Dmitry V. Surnin ,
Dmitry E. Guy ,
Faat Z. Gil'mutdinov ,
Yuri V. Ruts  and
Vladimir I. Grebennikov
Olga R. Zheltysheva
Affiliation:
Physical-Technical Institute of Ural Branch of RAS, The Laboratory of Atomic Structure and Surface Analysis, Physical-Technical Institute of UB RAS, Kirov st. 132, 426000 Izhevsk, Russia
Dmitry V. Surnin
Affiliation:
Physical-Technical Institute of Ural Branch of RAS, The Laboratory of Atomic Structure and Surface Analysis, Physical-Technical Institute of UB RAS, Kirov st. 132, 426000 Izhevsk, Russia
Dmitry E. Guy
Affiliation:
Physical-Technical Institute of Ural Branch of RAS, The Laboratory of Atomic Structure and Surface Analysis, Physical-Technical Institute of UB RAS, Kirov st. 132, 426000 Izhevsk, Russia
Faat Z. Gil'mutdinov
Affiliation:
Physical-Technical Institute of Ural Branch of RAS, The Laboratory of Atomic Structure and Surface Analysis, Physical-Technical Institute of UB RAS, Kirov st. 132, 426000 Izhevsk, Russia
Yuri V. Ruts
Affiliation:
Physical-Technical Institute of Ural Branch of RAS, The Laboratory of Atomic Structure and Surface Analysis, Physical-Technical Institute of UB RAS, Kirov st. 132, 426000 Izhevsk, Russia
Vladimir I. Grebennikov
Affiliation:
The Laboratory of Theoretical Physics, Institute of Metal Physics of Ural Branch of RAS, S. Kovalevskoy st. 18, 620066 Ekaterinburg, Russia
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Abstract

The surfaces of crystalline samples of 3d-metals (Mn, Fe, Co, Ni, and Cu) and their stoichiometric oxides have been studied by Auger spectroscopy. A correlation between the change in the LVV (L-inner level-valence-valence electron transition) Auger intensities and the change of the squares of the corresponding atomic-magnetic moments has been observed. This is because of the complicated nature of the Auger process. That is, the Auger electron emission is a result of the inner atomic level excitation by electron impact and Auger annihilation of the inner-level hole. Therefore, the Auger process has been considered a second-order process, and spin polarization of the valence states has been taken into account for the LMM (L-inner level-M-inner level-M-inner level electron transition) Auger spectra of 3d-metals.

Keywords

surfaceatomic magnetic momentAuger linevalence bandspin polarization3d-metals3-d metal oxides
Type
Papers from the European Microbeam Analysis Society Regional Workshop in Bled, Slovenia
Information
Microscopy and Microanalysis , Volume 11 , Issue 6 , December 2005 , pp. 562 - 566
Copyright
© 2005 Microscopy Society of America

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References

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