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Atomic structure of a spinel-like transition Al2O3(100) surface.
Phys Rev Lett ; 113(10): 106103, 2014 Sep 05.
Artigo em Inglês | MEDLINE | ID: mdl-25238371
We study a crystalline epitaxial alumina thin film with the characteristics of a spinel-type transition Al2O3(100) surface by using atom-resolved noncontact atomic force microscopy and density functional theory. It is shown that the films are terminated by an Al-O layer rich in Al vacancies, exhibiting a strong preference for surface hydroxyl group formation in two configurations. The transition alumina films are crystalline and perfectly stable in ambient atmospheres, a quality which is expected to open the door to new fundamental studies of the surfaces of transition aluminas.





Coleções: Bases de dados internacionais Base de dados: MEDLINE Idioma: Inglês Revista: Phys Rev Lett Ano de publicação: 2014 Tipo de documento: Artigo País de afiliação: Dinamarca