کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1680904 1518745 2012 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sputtering of freestanding metal nanocrystals
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
پیش نمایش صفحه اول مقاله
Sputtering of freestanding metal nanocrystals
چکیده انگلیسی

The sputtering mechanisms of nanocrystals are of interest both from basic science and application development points of view. Since the surface-to-volume ratio of nanocrystals is huge compared to normal bulk matter, one could expect enhanced sputtering yields, and indeed both simulations and experiments show sputtering yields which are clearly larger than those for flat bulk targets. We present a simple analytical model for the sputtering from nanocrystals, and apply it to two different kinds of irradiation, 25 keV Ga and 200 keV Ar irradiation of 1–15 nm diameter Au nanocrystals. The model predicts sputtering yields from the nanocrystals in good agreement with molecular dynamics simulations and experiments.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 272, 1 February 2012, Pages 66–69
نویسندگان
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