Inverse photoemission study of the early stages of polycrystalline iron oxidation

doi:10.1016/0039-6028(92)91304-T

Surface Science

Volumes 269–270, 15 May 1992, Pages 533-537

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Abstract

We present an inverse photoemission (IP) study of polycrystalline Fe oxidation performed at room temperature in the exposure range from 1 to 10³ langmuir (1L = 10⁻⁶ Torr · s). The spectra have been taken in the isochromat mode in the intraviolet photon energy range from 10.5 to Ev. In this region the empty 3d states give rise to a sharp and well defined feature which moves away from the Fermi level on going from the clean metal to the oxidized system. This effect saturates at an exposure of about 5 L. The data are compared with recent IP results from the complete family of Fe bulk oxides.

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Inverse photoemission study of the early stages of polycrystalline iron oxidation

Abstract

Surf. Sci.

Phys. Rev. Lett.

Phys. Rev. Lett.

Phys. Rev. B

Phys. Rev. B

Phys. Rev. B

Phys. Rev. B

Phys. Rev. B

Z. Phys. B