Atomic Structure of a Spinel-Like Transition Al2O3(100) Surface

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date

2014

Department

Department of Applied Physics

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Language

en

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Physical Review Letters, Volume 113, issue 10, pp. 1-5

Abstract

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.

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AFM, Oxides

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DOI

10.1103/PhysRevLett.113.106103

Citation

Jensen, T N, Meinander, K, Helveg, S, Foster, A S, Kulju, S, Musso, T & Lauritsen, J V 2014, 'Atomic Structure of a Spinel-Like Transition Al2O3(100) Surface', Physical Review Letters, vol. 113, no. 10, 106103, pp. 1-5. https://doi.org/10.1103/PhysRevLett.113.106103

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https://urn.fi/URN:NBN:fi:aalto-202510087616

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[article-cris] Perustieteiden korkeakoulu / SCI