抄録
We have investigated Cr deposited on anatase TiO2(001) surfaces using a combinatorial approach. Anatase TiO2(001) thin films covered with Cr metals were prepared on a Nb-doped SrTiO3(001) substrate by combinatorial laser molecular beam epitaxy and characterized by in situ low-energy electron diffraction and ultrahigh vacuum (UHV) scanning tunneling microscopy (STM). STM images of a clean TiO2(001) surface showed that one-dimensional structures along the [100] and [010] directions were formed, resulting in a (1 × 4) surface reconstruction. When Cr atoms were deposited on the anatase TiO2 surface and the films were annealed at 900 K in UHV, the one-dimensional structures became branched and showed short-range disorder. The observed surface structural disordering will be discussed in terms of the lattice strain induced by the Cr atoms diffused into the bulk.
本文言語 | English |
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ページ(範囲) | 3018-3020 |
ページ数 | 3 |
ジャーナル | Langmuir |
巻 | 20 |
号 | 8 |
DOI | |
出版ステータス | Published - 2004 4月 13 |
外部発表 | はい |
ASJC Scopus subject areas
- 材料科学(全般)
- 凝縮系物理学
- 表面および界面
- 分光学
- 電気化学