Автор |
Pei-Lin Cao |
Автор |
Ru-Hong Zhou |
Дата выпуска |
1993-05-03 |
dc.description |
The bonding characterization of Br on the Si(100) surface has been studied by the atom superposition and electron delocalization molecular orbital theory, using 2*1 symmetric- and buckled-dimer models for this surface. From the total energy minima, the authors have found two stable adsorption sites for Br bonding in the symmetric-dimer model. One is along the surface dangling bond with a Br-Si bond length of 2.16 AA and a bond angle of 19 degrees to the surface normal; the other is the bridge site with a Br-Si bond length of 2.13 AA. In the buckled-dimer model, Br is predicted to adsorb onto the dangling bonds and further to enhance the buckling. The calculated bond lengths and angles are in good agreement with the recent X-ray standing-wave (XSW) experiment. Moreover, the authors give a new explanation for the low coherent fraction f<sub>c</sub> in the XSW study. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
The bonding characterization of Br on Si(100)2*1 |
Тип |
paper |
DOI |
10.1088/0953-8984/5/18/011 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
5 |
Первая страница |
2897 |
Последняя страница |
2902 |
Аффилиация |
Pei-Lin Cao; Dept. of Phys., Zhejiang Univ., Hangzhou, China |
Аффилиация |
Ru-Hong Zhou; Dept. of Phys., Zhejiang Univ., Hangzhou, China |
Выпуск |
18 |