Journal article

Publication year: 1995

Pages: 16812-16829

Journal: Physical Review B

Volume number: 52

Issue number: 23

ISSN: 0163-1829

DOI Link: https://doi.org/10.1103/PhysRevB.52.16812

Publisher: American Physical Society

Abstract: 

We present a detailed account of the concept of ‘‘split positions’’ in low-energy electron diffraction (LEED). This allows us to study the dynamics of adsorbate particles on surfaces in addition to structural information usually provided by LEED. Enhanced lateral movements of adsorbed atoms and molecules are simulated by displacing them from their equilibrium position by an amount respresenting the mean-square deviation. Within the harmonic-oscillator approximation, the mean-square deviation is closely related to the eigenfrequencies of the vibrational modes which can be compared to values obtained by (standard) spectroscopic techniques. Several examples of adsorbate overlayers on metal and semiconductor surfaces will demonstrate the merits and potentiality of this approach.

Harvard Citation style: Over, H., Gierer, M., Bludau, H. and Ertl, G. (1995) Anisotropic thermal displacements of adsorbed atoms and molecules on surfaces studied by low-energy electron diffraction, Physical Review B, 52(23), pp. 16812-16829. https://doi.org/10.1103/PhysRevB.52.16812

APA Citation style: Over, H., Gierer, M., Bludau, H., & Ertl, G. (1995). Anisotropic thermal displacements of adsorbed atoms and molecules on surfaces studied by low-energy electron diffraction. Physical Review B. 52(23), 16812-16829. https://doi.org/10.1103/PhysRevB.52.16812