Oxygen Emissions from Single-Crystalline Fe_3O_4 Surfaces Induced by Low-Energy Ion Bombardments

• Authors: N Kim-Ngan , W Soszka
• Languages of publication: EN

Abstracts

EN

Negative-charged ion energy spectra of the Fe_3O_4 (001) and (111) surface revealed large peaks attributed to the O^- recoils from a binary collision. Under Ar^+ ion bombardments such an emission was largely affected by the screening effect of the Fe ions. A distinguished peak related to the O^+ recoil ions was observed under Ne^+ ion bombardments, while such a peak was merged into the high background in the case of Ar^+ ion ones. A weak effect from the Verwey transition was found on oxygen emissions. For the (111) surface a small peak characteristic of the O^+ recoils from double collisions appeared in the energy spectra around 140-170 K and a minimum was observed in both R^+(T) and R^-(T) curves under 6 keV Ne^+ ion beam.

Keywords

EN

68.35.-p   61.18.Bn  

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2006
• Volume: 109
• Issue: 6
• Pages: 715-721

Dates

published

2006-06

received

2006-01-09

References

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• 3. N.-T.H. Kim-Ngan, W. Soszka, Surf. Sci., 536, 24, 2003
• 4. N.-T.H. Kim-Ngan, W. Soszka, G. Jaglo, D. Goc-Jaglo, J. Magn. Magn. Mater., 268, 49, 2004
• 5. N.-T.H. Kim-Ngan, W. Soszka, A. Kozłowski, J. Magn. Magn. Mater., 279, 125, 2004
• 6. A. Kozłowski, Z. Kąkol, D. Kim, R. Zalecki, J.M. Honig, Phys. Rev. B, 54, 12093, 1996 and references therein

Identifiers

DOI

10.12693/APhysPolA.109.715