Adsorption, diffusion, and site exchange for Ge ad-dimers on Sb-covered Si(001) from first-principles total-energy calculations
文献类型：期刊论文
| 作者 | Liu, EZ ; Wang, CY ; Wang, JT |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2006 |
| 卷号 | 74期号:7 |
| 关键词 | MEDIATED EPITAXIAL-GROWTH SURFACTANTS |
| ISSN号 | 1098-0121 |
| 通讯作者 | Liu, EZ: Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China. |
| 中文摘要 | The adsorption and diffusion of Ge adatoms and ad-dimers on the one-monolayer Sb-covered Si(001) surface are studied using first-principles total-energy calculations. It is shown that Ge adatoms and ad-dimers can both break Sb dimers because of the weak bonding of the Sb dimers on Si(001). As a result, the most stable sites are both on the Sb dimer rows for Ge adatoms and ad-dimers, which is in significant contrast to the conventional picture that the most stable site for a Ge ad-dimer is in the trough between the group-V element dimer rows. We have also examined the energetics of the site exchange between Ge and Sb atoms for the surfactant-mediated growth and find that Ge ad-dimers tend to exchange with the subsurface Sb atoms one by one perpendicular to the surface dimer rows. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/33503]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Liu, EZ,Wang, CY,Wang, JT. Adsorption, diffusion, and site exchange for Ge ad-dimers on Sb-covered Si(001) from first-principles total-energy calculations[J]. PHYSICAL REVIEW B,2006,74(7). |
| APA | Liu, EZ,Wang, CY,&Wang, JT.(2006).Adsorption, diffusion, and site exchange for Ge ad-dimers on Sb-covered Si(001) from first-principles total-energy calculations.PHYSICAL REVIEW B,74(7). |
| MLA | Liu, EZ,et al."Adsorption, diffusion, and site exchange for Ge ad-dimers on Sb-covered Si(001) from first-principles total-energy calculations".PHYSICAL REVIEW B 74.7(2006). |
入库方式： OAI收割
来源：物理研究所
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