Detection of the adsorption of water monolayers through the ion oscillation frequency in the magnesium oxide lattice by means of low energy electron diffraction
Source abstract
Abstract
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.
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Research context
OpenAlex topics: Spectroscopy and Quantum Chemical Studies · Electronic and Structural Properties of Oxides · Electrostatics and Colloid Interactions
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Universidad de Costa Rica 1 Escuela de Física, , 2060 San Pedro, San José, Costa Rica
Universidad de Costa Rica 2 Centro de Investigación en Ciencia e Ingeniería de Materiales, , 2060 San Pedro, San José, Costa Rica
Universidad de Costa Rica 3 Sección de Física Teórica, , 2060 San Pedro, San José, Costa Rica
Institut für Quantenoptik und Quanteninformation 4 , Österreichische Akademie der Wissenschaften, Technikerstr. 21a, 6020 Innsbruck, Austria
References (32)
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