Dual Au-Si bonding character and Au surfactant effect on Au/Si(111) surfaces

被引：0

作者：

Murayama, M ^{[1
]}

Nakayama, T ^{[1
]}

Natori, A ^{[1
]}

机构：

[1] Univ Electrocommun, Dept Elect Engn, Chofu, Tokyo 1828585, Japan

来源：

PROCEEDINGS OF THE 25TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS, PTS I AND II | 2001年 / 87卷

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D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

dElectronic structures of Au/Si(111) surfaces have been calculated by the ab initio pseudopotential method in a local density approximation. We found that there are strong electronic-state couplings between Au trimers and surface Si, which induce the charge transfer from Si to Au-Si covalent bonds and the charge redistribution from d to s orbitals around Au. It is shown that Au overlayer acts as a surfactant through Au-Si rebonding during Si growth.

引用

页码：341 / 342

页数：2

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