کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9818311 | 1518778 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Stochastic effects of charge transfer on image interaction and plasmon excitation in ion-surface grazing scattering
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Stochastic effects of charge transfer on image interaction and plasmon excitation in ion-surface grazing scattering Stochastic effects of charge transfer on image interaction and plasmon excitation in ion-surface grazing scattering](/preview/png/9818311.png)
چکیده انگلیسی
We model the charge-state evolution of fast hydrogen-like ions in the course of grazing scattering from metal surfaces by a Markov process with the time-dependent jump coefficients. Using the master equation for charge exchange, we show that the process may be treated as quasi-stationary owing to the adiabatically slow ion motion in the direction perpendicular to the surface. We further employ the dielectric formalism within the specular reflection model and the plasmon-pole approximation to evaluate the expectation values for the ion-image interaction with the surface and the rate of surface-plasmon excitation. We find that, close to the surface, both these quantities are significantly affected by the projectile-charge fluctuations. In particular, we find a substantial rate of the plasmon excitation for ion velocities well below the threshold implied by the kinematic constraint.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 230, Issues 1â4, April 2005, Pages 391-397
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 230, Issues 1â4, April 2005, Pages 391-397
نویسندگان
Z.L. MiÅ¡koviÄ, F.O. Goodman, Yuan-Hong Song, You-Nian Wang,