کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5361868 | 1388277 | 2011 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Scattering effects and damping of electrons in Pt(1Â 1Â 1) and Cu(1Â 1Â 1)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
⺠In this study we use the DEPES method to reveal the crystalline structure of Cu(1 1 1) and Pt(1 1 1), as well as to investigate the mechanism of electron scattering along the [1 1 1] direction and damping of electrons in crystalline samples. ⺠Both experimental and theoretical approaches were used. The later is based on the multiple scattering (MS) formalism. ⺠We conclude that the characteristic pattern observed along the [1 1 1] direction originate from the so called ring focusing effect as a consequence of the collective scattering of primary electrons by atoms located around the three fold symmetry axis. ⺠Different relative intensity values obtained in experimental and theoretical DEPES distributions are rationalised by the inelastic mean free path, which can have an anisotropic character.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 257, Issue 15, 15 May 2011, Pages 6867-6872
Journal: Applied Surface Science - Volume 257, Issue 15, 15 May 2011, Pages 6867-6872
نویسندگان
I. Morawski, M. Nowicki,