کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9595323 | 1395931 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Relaxations in the 1Â ÃÂ 5 reconstruction of Pt(1Â 1Â 0)
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Pt(1Â 1Â 0) is one of the most closely investigated metal surface structures because it displays a variety of “missing-row” reconstructions, which are only marginally stable. The ground state is usually found to have 1Â ÃÂ 2 translational symmetry, but a 1Â ÃÂ 3 form has also been seen. Between 1Â ÃÂ 2 and 1Â ÃÂ 3, a series of disordered structures has been recorded, which shows a slight preference for 1Â ÃÂ 5 periodicity. Under the preparation conditions used in this study, a stable 1Â ÃÂ 5 structure was found for Pt(1Â 1Â 0). Investigation by surface X-ray diffraction has led to a complete three-dimensional structure, which closely resembles an alternation of 1Â ÃÂ 2 and 1Â ÃÂ 3 unit cells. Pt(1Â 1Â 0) shows an interesting example of two “homometric” structures that are indistinguishable by diffraction, but are distinguishable by virtue of their subsurface relaxation pattern.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 575, Issue 3, 1 February 2005, Pages 321-329
Journal: Surface Science - Volume 575, Issue 3, 1 February 2005, Pages 321-329
نویسندگان
I.K. Robinson, M.C. Saint-Lager, P. Dolle, S. Boutet, M. De Santis, R. Baudoing-Savois,