Detection of the adsorption of water monolayers through the ion oscillation frequency in the magnesium oxide lattice by means of low energy electron diffraction
artículo original
Fecha
2016-03Autor
Guevara Bertsch, Milena
Ramírez Hidalgo, Gustavo
Chavarría Sibaja, Andrés
Avendaño Soto, Esteban
Araya Pochet, José
Herrera Sancho, Óscar Andrey
Metadatos
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We investigate the variation of the oscillation frequency of the Mg2+ and O2− ions in the magnesium oxide lattice due to the interactions of the surface with water monolayers by means of Low Energy Electron Diffraction. Our key result is a new technique to determine the adsorbate vibrations produced by the water monolayers on the surface lattice as a consequence of their change in the surface Debye temperature and its chemical shift. The latter was systematically investigated for different annealing times and for a constant external thermal perturbation in the range of 110–300 K in order to accomplish adsorption or desorption of water monolayers in the surface lattice.
External link to the item
10.1063/1.4944912Colecciones
- Química [360]
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