Structural investigations of Al5Co2(2-10) and (100) surfaces: Influence of bonding strength and annealing temperature on surface terminations

Abstract : Structural investigations of the (2-10) and (100) surfaces of Al5Co2 using experimental ultrahigh vacuum techniques and ab initio computational methods are presented in this work. Both surfaces are identified and show bulk terminations where only specific atoms remain. These atoms can be seen as truncated parts of chemically bonded atomic motifs which have been identified in the bulk in a previous work [M. Meier et al., Phys. Rev. B 91, 085414 (2015)]. Whereas the (2-10) surface presents a single termination, the structure of the (100) topmost layers is found to be highly dependent on the preparation conditions, especially on the annealing temperature. This behavior, also observed for the (001) surface studied previously, can be partly explained when considering the bonding strength of the truncated motif parts with the subsurface
Type de document :
Article dans une revue
Physical Review B : Condensed matter and materials physics, American Physical Society, 2016, 93, pp.075412. <10.1103/PhysRevB.93.075412>
Liste complète des métadonnées

https://hal.archives-ouvertes.fr/hal-01284776
Contributeur : Emilie Gaudry <>
Soumis le : mardi 8 mars 2016 - 10:21:57
Dernière modification le : mardi 10 mai 2016 - 12:05:04
Document(s) archivé(s) le : dimanche 13 novembre 2016 - 10:06:06

Fichier

PRBMeier.pdf
Fichiers éditeurs autorisés sur une archive ouverte

Identifiants

Collections

Citation

M. Meier, J. Ledieu, M.-C. De Weerd, V. Fournée, Emilie Gaudry. Structural investigations of Al5Co2(2-10) and (100) surfaces: Influence of bonding strength and annealing temperature on surface terminations. Physical Review B : Condensed matter and materials physics, American Physical Society, 2016, 93, pp.075412. <10.1103/PhysRevB.93.075412>. <hal-01284776>

Partager

Métriques

Consultations de
la notice

135

Téléchargements du document

71