Structure, transformation, and reduction of the polar NiO(111) surface

Authors
Barbier, A Mocuta, C Renaud, G
Citation
A. Barbier et al., Structure, transformation, and reduction of the polar NiO(111) surface, PHYS REV B, 62(23), 2000, pp. 16056-16062
Citations number
31
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
62
Issue
23
Year of publication
2000
Pages
16056 - 16062
Database
ISI
SICI code
0163-1829(200012)62:23<16056:STAROT>2.0.ZU;2-7
Abstract
A detailed structural analysis of the NiO(111)-p(2 x 2) surface by surface x-ray diffraction is presented and previous interpretations are revisited. The surface adopts the octopolar reconstruction after air annealing and a s pinel-like configuration after UHV annealing under low oxygen pressure corr esponding to a reduced state. The transformation rate is determined and dis cussed. Both configurations and their transformation allow drawing a cohere nt scheme of the behavior of this polar oxide surface.