Fauster T (1991)
Publication Status: Published
Publication Type: Journal article
Publication year: 1991
Publisher: American Physical Society
Book Volume: 43
Pages Range: 12187-12194
DOI: 10.1103/PhysRevB.43.12187
The thermal vibrations of surface atoms on Cu(110) have been studied as a function of temperature with ion-scattering spectroscopy in the impact-collision mode. By comparing the experimental data to Monte Carlo simulations of the scattering process, mean-square displacements of surface atoms are obtained that agree well with the results of helium diffraction and inverse photoemission experiments. Below 550 K the atom vibrations can be described quite well by a Debye temperature of 224 K obtained from phonon slab calculations. Above 550 K strong anharmonic vibrations are observed. In this temperature region we find thermally activated adatoms to be produced with an activation energy of 0.27 +/- 0.07 eV. Both effects lead above 1000 K to structural changes of the surface that can be described in terms of a rough surface or a quasiliquid layer on the surface.
APA:
Fauster, T. (1991). ANOMALOUS DYNAMIC BEHAVIOR OF THE CU(110) SURFACE. Physical Review B, 43, 12187-12194. https://dx.doi.org/10.1103/PhysRevB.43.12187
MLA:
Fauster, Thomas. "ANOMALOUS DYNAMIC BEHAVIOR OF THE CU(110) SURFACE." Physical Review B 43 (1991): 12187-12194.
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