کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9595253 | 1507980 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Secondary emission from W(1Â 1Â 0) excited by spin-polarized electrons
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Energy distribution curves (EDC) of secondary electrons from W(1 1 0) were measured for spin-up (I+) and spin-down (Iâ) polarization of the incident beam. The intensity asymmetry, defined as A = (I+ â Iâ)/(I+ + Iâ), for a certain experimental geometry was measured as large as 7%. This asymmetry was explained in terms of a “spin-filter” effect. The model assumes that the secondary electrons excited by spin-polarized primary electrons are spin-polarized inside the solid. On the way to the vacuum they undergo spin-orbit interaction on the surface barrier that provides the spin-dependent and energy selective transmission through the surface.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 579, Issues 2â3, 1 April 2005, Pages 166-174
Journal: Surface Science - Volume 579, Issues 2â3, 1 April 2005, Pages 166-174
نویسندگان
S. Samarin, O.M. Artamonov, A.D. Sergeant, J.F. Williams,