Автор |
M M D Ramos |
Автор |
A M Stoneham |
Автор |
A P Sutton |
Автор |
J B Pethica |
Дата выпуска |
1990-07-02 |
dc.description |
The authors have performed self-consistent calculations for molecules adsorbed on a metal substrate in the presence of a scanning tunnelling microscope (STM) tip. These calculations of comprise (i) estimates of the inhomogeneous electric field, (ii) the self-consistent calculation of both electronic structure and molecular geometry using an extended semi-empirical molecular orbital method, and (iii) estimates of the tunnelling current using the resulting wave-functions and geometries. The STM tip causes changes in atomic positions which can complicate the link between current and geometry. In particular, induced molecular reorientation may well explain the lack of observation by STM of adsorbed CO on metals. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Effects of the STM tip on atomic positions: an explanation for the nonobservation of adsorbed molecules? |
Тип |
lett |
DOI |
10.1088/0953-8984/2/26/029 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
2 |
Первая страница |
5913 |
Последняя страница |
5917 |
Аффилиация |
M M D Ramos; Dept. of Metall., Oxford Univ., UK |
Аффилиация |
A M Stoneham; Dept. of Metall., Oxford Univ., UK |
Аффилиация |
A P Sutton; Dept. of Metall., Oxford Univ., UK |
Аффилиация |
J B Pethica; Dept. of Metall., Oxford Univ., UK |
Выпуск |
26 |