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Anomalous electron energy-loss spectra of Ni(430) and a disordering of atomic steps

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Wolf,  Martin       
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Loboda-Cackovic,  J.
Fritz Haber Institute, Max Planck Society;

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Kambe,  Kyozaburo
Fritz Haber Institute, Max Planck Society;

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Block,  Jochen H.
Fritz Haber Institute, Max Planck Society;

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Citation

Wolf, M., Loboda-Cackovic, J., Kambe, K., Block, J. H., & Grunze, M. (1989). Anomalous electron energy-loss spectra of Ni(430) and a disordering of atomic steps. Journal of Physics: Condensed Matter, 1(23), 3701-3709. doi:10.1088/0953-8984/1/23/016.


Cite as: https://hdl.handle.net/21.11116/0000-000E-82A2-7
Abstract
The authors present energy-loss spectra (ELS) in the range 0-20 eV taken as a function of temperature (90-800 K) and primary energy (100-400 eV) for a Ni(430), or (7/2-(110)*1/2-(100)), surface. A strong primary-energy dependence of ELS and pronounced differences within the ELS of the low-energy electron diffraction beams were observed. These characteristics arise from the presence of ordered atomic steps on the surface, as shown by a model calculation. They also observed temperature-dependent variations of the ELS, and interpreted them as being induced by a structural transition of the surface.