کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5489710 | 1524372 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Stability diagrams for the surface patterns of GaN(0001¯) as a function of Schwoebel barrier height
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Stability diagrams for the surface patterns of GaN(0001¯) as a function of Schwoebel barrier height Stability diagrams for the surface patterns of GaN(0001¯) as a function of Schwoebel barrier height](/preview/png/5489710.png)
چکیده انگلیسی
Height and type of Schwoebel barriers (direct or inverse) decides about the character of the surface instability. Different surface morphologies are presented. Step bunches, double steps, meanders, mounds and irregular patterns emerge at the surface as a result of step (Schwoebel) barriers at some temperature or miscut values. The study was carried out on the two-component kinetic Monte Carlo (kMC) model of GaN(0001¯) surface grown in nitrogen rich conditions. Diffusion of gallium adatoms over N-polar surface is slow and nitrogen adatoms are almost immobile. We show that in such conditions surfaces remain smooth when gallium adatoms diffuse in the presence of low inverse Schwoebel barrier. It is illustrated by adequate stability diagrams for surface morphologies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 457, 1 January 2017, Pages 80-84
Journal: Journal of Crystal Growth - Volume 457, 1 January 2017, Pages 80-84
نویسندگان
Filip Krzyżewski, Magdalena A. ZaÅuska-Kotur,