کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9594587 | 1507968 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Photoemission study on the Sb-induced reconstruction of the Si(1Â 1Â 2) surface
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Photoemission study on the Sb-induced reconstruction of the Si(1Â 1Â 2) surface Photoemission study on the Sb-induced reconstruction of the Si(1Â 1Â 2) surface](/preview/png/9594587.png)
چکیده انگلیسی
This study investigated the Sb-induced reconstruction of the Si(1 1 2)2 Ã 1 surface using low energy electron diffraction (LEED) and synchrotron radiation photoelectron spectroscopy (SRPES). When Sb was deposited on the clean Si(1 1 2) surface at 300 °C, a sharp hexagonal LEED pattern with weak “n/5” fractional spots was observed, which is very similar to one of the Sb/Si(1 1 1)1 Ã 1 surfaces. The Si 2p and Sb 4d core level photoemission spectra were measured. The analysis results of the SRPES showed that the Si 2p core-level spectrum is composed of two surface-related components: a surface component at +0.2 eV and a small surface-related component at -0.2 eV with respect to the bulk component. In addition, the Sb 4d core-level spectrum was well reproduced with one doublet component. The results revealed that Sb atoms were adsorbed at unique sites on a Si(1 1 1)1 Ã 1 surface. On the basis of the nanofacet structure model of the Sb/Si(1 1 2) surface suggested by a previous scanning tunneling microscopy (STM) study, the structural model of the Sb/Si(1 1 2) surface was compared with the LEED pattern and the SRPES results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 591, Issues 1â3, 20 October 2005, Pages 38-44
Journal: Surface Science - Volume 591, Issues 1â3, 20 October 2005, Pages 38-44
نویسندگان
E.S. Cho, M.K. Kim, J.W. Park, H. Hur, C. Jeon, J.Y. Baik, C.C. Hwang, T.H. Kang, B. Kim, K.S. An, C.-Y. Park, S.B. Lee,