کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5426359 1395888 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Faceting of nanoscale fingers on the (1 1 1) surface of gold
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Faceting of nanoscale fingers on the (1 1 1) surface of gold
چکیده انگلیسی

Gold fingers, one atomic layer (0.25 nm) high, 4-5 nm wide, and several hundred nm long are formed on the (1 1 1) surface of gold at room temperature by a combination of atomic manipulation and surface self-organisation. Each finger has two parallel edges (type A and type B, respectively) running along its length. The type A step is found to have higher step energy and become nanofaceted when disturbed by either thermal energy or the electric field under the STM tip, leading to the transformation of fingers to “nano-knives”. Our findings reveal the important role of step energy in the process of nanostructure fabrication on surfaces. The gold fingers also provide an ideal system for the investigation of meta-stable nanostructures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 600, Issue 7, 1 April 2006, Pages 1504-1509
نویسندگان
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