Ordered overlayers of Ca on TiO2(110)-1×1

O. Bikondoa; C. L. Pang; C. A. Muryn; B. G. Daniels; S. Ferrero; E. Michelangeli; G. Thornton

doi:10.1021/jp0481431

Ordered overlayers of Ca on TiO₂(110)-1×1

O. Bikondoa, C. L. Pang, C. A. Muryn, B. G. Daniels, S. Ferrero, E. Michelangeli, G. Thornton^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

Scanning tunneling microscopy (STM) and low-energy electron diffraction (LEED) have been used to examine the structure of ordered adlayers of Ca on TiO₂(110)-1 × 1 formed by metal vapor deposition. A comparison is made with structures formed by segregation of Ca from the bulk, with similar structures being found for the two preparation methods below a monolayer coverage. At low coverages, rows of width ∼0.6-0.9 nm develop in the [110] and [001] azimuths. At coverages equivalent to a single calcium layer, a c(6×2) overlayer is formed. At coverages above a single layer, a disordered structure develops and a LEED pattern with (² -0.1 1 ⁰) symmetry is observed.

Original language	English
Pages (from-to)	16768-16771
Number of pages	4
Journal	Journal of Physical Chemistry B
Volume	108
Issue number	43
DOIs	https://doi.org/10.1021/jp0481431
Publication status	Published - 28 Oct 2004

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title = "Ordered overlayers of Ca on TiO2(110)-1×1",

abstract = "Scanning tunneling microscopy (STM) and low-energy electron diffraction (LEED) have been used to examine the structure of ordered adlayers of Ca on TiO2(110)-1 × 1 formed by metal vapor deposition. A comparison is made with structures formed by segregation of Ca from the bulk, with similar structures being found for the two preparation methods below a monolayer coverage. At low coverages, rows of width ∼0.6-0.9 nm develop in the [110] and [001] azimuths. At coverages equivalent to a single calcium layer, a c(6×2) overlayer is formed. At coverages above a single layer, a disordered structure develops and a LEED pattern with (2 -0.1 1 0) symmetry is observed.",

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T1 - Ordered overlayers of Ca on TiO2(110)-1×1

AU - Bikondoa, O.

AU - Pang, C. L.

AU - Muryn, C. A.

AU - Daniels, B. G.

AU - Ferrero, S.

AU - Michelangeli, E.

AU - Thornton, G.

PY - 2004/10/28

Y1 - 2004/10/28

N2 - Scanning tunneling microscopy (STM) and low-energy electron diffraction (LEED) have been used to examine the structure of ordered adlayers of Ca on TiO2(110)-1 × 1 formed by metal vapor deposition. A comparison is made with structures formed by segregation of Ca from the bulk, with similar structures being found for the two preparation methods below a monolayer coverage. At low coverages, rows of width ∼0.6-0.9 nm develop in the [110] and [001] azimuths. At coverages equivalent to a single calcium layer, a c(6×2) overlayer is formed. At coverages above a single layer, a disordered structure develops and a LEED pattern with (2 -0.1 1 0) symmetry is observed.

AB - Scanning tunneling microscopy (STM) and low-energy electron diffraction (LEED) have been used to examine the structure of ordered adlayers of Ca on TiO2(110)-1 × 1 formed by metal vapor deposition. A comparison is made with structures formed by segregation of Ca from the bulk, with similar structures being found for the two preparation methods below a monolayer coverage. At low coverages, rows of width ∼0.6-0.9 nm develop in the [110] and [001] azimuths. At coverages equivalent to a single calcium layer, a c(6×2) overlayer is formed. At coverages above a single layer, a disordered structure develops and a LEED pattern with (2 -0.1 1 0) symmetry is observed.

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Ordered overlayers of Ca on TiO₂(110)-1×1

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