Ordered overlayers of Ca on TiO2(110)-1x1

被引：0

作者：

Bikondoa, O

Pang, CL

Muryn, CA

Daniels, BG

Ferrero, S

Michelangeli, E

Thornton, G

机构：

[1] UCL, London Ctr Nanotechnol, London WC1H 0AJ, England

[2] UCL, Dept Chem, London WC1H 0AJ, England

[3] Univ Manchester, Nanosci Res Ctr, Manchester M13 9PL, Lancs, England

[4] Univ Manchester, Dept Chem, Manchester M13 9PL, Lancs, England

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2004年 / 108卷 / 43期

关键词：

D O I：

10.1021/jp048143l

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 x 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 similar to0.6-0.9 nm develop in the [1 (1) over bar0] and [001] azimuths. At coverages equivalent to a single calcium layer, a c(6 x 2) overlayer is formed. At coverages above a single layer, a disordered structure develops and a LEED pattern with ((2)(-0.1) (0)(1)) symmetry is observed.

引用

页码：16768 / 16771

页数：4

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