Structure and local-equilibrium thermodynamics of the c(2×2) reconstruction of rutile TiO2 (100)

O. Warschkow*, Y. Wang, A. Subramanian, M. Asta, Laurence Marks

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

We resolve the structure of a c(2×2) reconstruction of the rutile TiO2 (100) surface using a combination of transmission electron diffraction, direct methods analysis, and density functional theory. The surface structure contains an ordered array of subsurface oxygen vacancies and is in local thermodynamic equilibrium with bulk TiO2, but not the with oxygen gas-phase environment. The transition into a bulklike (1×1) reconstruction offers insights into the time-dependent local thermodynamics of TiO2 surface reconstruction under global nonequilibrium conditions.

Original languageEnglish (US)
Article number086102
JournalPhysical Review Letters
Volume100
Issue number8
DOIs
StatePublished - Feb 28 2008

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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