Abstract

The Al(110) surface has been studied by low-energy electron diffraction experiments performed in the temperature range from 40 to 890 K. The three outermost interlayer spacings, the inner potential, and the rms-vibrational amplitudes normal to the surface were determined between 40 and 450 K by a kinematical analysis of the I(E) spectra. In this temperature range a negative expansion coefficient for the first interlayer spacing and a temperature-dependent inner potential was found. At higher temperatures the mean thermal expansion coefficient was derived by the peak-shift method.

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