Автор |
M M D Ramos |
Автор |
A M Stoneham |
Автор |
A P Sutton |
Дата выпуска |
1993-05-03 |
dc.description |
The authors present a theoretical study of the effects of the STM tip on the geometry of Si(100) reconstructed surfaces. The energy barrier to switching between different reconstructions is also discussed. They use a molecular dynamics method and self-consistent forces to simulate the time-dependent behaviour of the surface atoms. The molecular orbital calculations are performed at the CNDO level using a cluster model. Their results indicate significant differences for positively and negatively biased tips. The thermally induced rocking of surface dimers is inhibited by the application of a positive bias to the tip and it is promoted by a negative bias. These bias-dependent effects may offer a plausible explanation for the bias dependence of STM images of this surface. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
The effect of the STM tip on Si(100) reconstructed surfaces |
Тип |
paper |
DOI |
10.1088/0953-8984/5/18/006 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
5 |
Первая страница |
2849 |
Последняя страница |
2858 |
Аффилиация |
M M D Ramos; Dept. of Mater., Oxford Univ., UK |
Аффилиация |
A M Stoneham; Dept. of Mater., Oxford Univ., UK |
Аффилиация |
A P Sutton; Dept. of Mater., Oxford Univ., UK |
Выпуск |
18 |