Detection of the adsorption of water monolayers through the ion oscillation frequency in the magnesium oxide lattice by means of low energy electron diffraction
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...
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AIP Publishing LLC
2016-03-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4944912 |
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doaj-060f649977fe4f14b46797f1df06a5662020-11-24T23:39:16ZengAIP Publishing LLCAIP Advances2158-32262016-03-0163035317035317-1110.1063/1.4944912071603ADVDetection of the adsorption of water monolayers through the ion oscillation frequency in the magnesium oxide lattice by means of low energy electron diffractionM. Guevara-Bertsch0G. Ramírez-Hidalgo1A. Chavarría-Sibaja2E. Avendaño3J. A. Araya-Pochet4O. A. Herrera-Sancho5Escuela de Física, Universidad de Costa Rica, 2060 San Pedro, San José, Costa RicaCentro de Investigación en Ciencia e Ingeniería de Materiales, Universidad de Costa Rica, 2060 San Pedro, San José, Costa RicaCentro de Investigación en Ciencia e Ingeniería de Materiales, Universidad de Costa Rica, 2060 San Pedro, San José, Costa RicaEscuela de Física, Universidad de Costa Rica, 2060 San Pedro, San José, Costa RicaCentro de Investigación en Ciencia e Ingeniería de Materiales, Universidad de Costa Rica, 2060 San Pedro, San José, Costa RicaEscuela de Física, Universidad de Costa Rica, 2060 San Pedro, San José, Costa RicaWe 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.http://dx.doi.org/10.1063/1.4944912 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
M. Guevara-Bertsch G. Ramírez-Hidalgo A. Chavarría-Sibaja E. Avendaño J. A. Araya-Pochet O. A. Herrera-Sancho |
| spellingShingle |
M. Guevara-Bertsch G. Ramírez-Hidalgo A. Chavarría-Sibaja E. Avendaño J. A. Araya-Pochet O. A. Herrera-Sancho Detection of the adsorption of water monolayers through the ion oscillation frequency in the magnesium oxide lattice by means of low energy electron diffraction AIP Advances |
| author_facet |
M. Guevara-Bertsch G. Ramírez-Hidalgo A. Chavarría-Sibaja E. Avendaño J. A. Araya-Pochet O. A. Herrera-Sancho |
| author_sort |
M. Guevara-Bertsch |
| title |
Detection of the adsorption of water monolayers through the ion oscillation frequency in the magnesium oxide lattice by means of low energy electron diffraction |
| title_short |
Detection of the adsorption of water monolayers through the ion oscillation frequency in the magnesium oxide lattice by means of low energy electron diffraction |
| title_full |
Detection of the adsorption of water monolayers through the ion oscillation frequency in the magnesium oxide lattice by means of low energy electron diffraction |
| title_fullStr |
Detection of the adsorption of water monolayers through the ion oscillation frequency in the magnesium oxide lattice by means of low energy electron diffraction |
| title_full_unstemmed |
Detection of the adsorption of water monolayers through the ion oscillation frequency in the magnesium oxide lattice by means of low energy electron diffraction |
| title_sort |
detection of the adsorption of water monolayers through the ion oscillation frequency in the magnesium oxide lattice by means of low energy electron diffraction |
| publisher |
AIP Publishing LLC |
| series |
AIP Advances |
| issn |
2158-3226 |
| publishDate |
2016-03-01 |
| description |
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. |
| url |
http://dx.doi.org/10.1063/1.4944912 |
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