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Volume 117, 2000
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Effect of the projected band gap on the formation of negative ions in grazing collisions from Cu surfaces

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Abstract

The formation of negative ions (H, O, S, F, Cl) is studied for grazing scattering of fast ions from Cu(110) and Cu(111) surfaces. In a detailed experimental and theoretical investigation we reveal that the projected L-band gap of the Cu metal affects charge transfer in a specific manner. From the analysis of the negative ion fractions as functions of projectile velocity we conclude that, for the Cu(111) surface the electronic 2D surface state continuum plays an essential role in the projectile–surface electron transfer.

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Publication details

The article was received on 25 Apr 2000 and first published on 13 Sep 2000


Article type: Paper
DOI: 10.1039/B003262J
Citation: Faraday Discuss., 2000,117, 27-40
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    Effect of the projected band gap on the formation of negative ions in grazing collisions from Cu surfaces

    T. Hecht, H. Winter, A. G. Borisov, J. P. Gauyacq and A. K. Kazansky, Faraday Discuss., 2000, 117, 27
    DOI: 10.1039/B003262J

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