کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1682548 | 1518736 | 2012 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Planar channeling in wurtzite structured ZnO (0Â 0Â 0Â 1): Anisotropic effects due to the non-centrosymmetric structure
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
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چکیده انگلیسی
Simulated and experimental channeling angular scans across the plane show a significant asymmetry prominently at the shoulder region at near-surface depths. Considering the variation of ion flux distribution with respect to the angle of incidence, we observe that the shoulder region is a result of superposition of the primary flux super focus with the atomic planes; the asymmetry is a result of the difference of ion flux density at Zn (or O) atomic planes at the two angles that correspond to shoulders caused by flux masking by O (or Zn) planes. Therefore, the interaction of channeling super focus with atomic planes and the ratio of shoulders can conversely be used in determining the crystallographic polarity, and in general analysis involving determining the stacking sequence of atomic planes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 281, 15 June 2012, Pages 77-81
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 281, 15 June 2012, Pages 77-81
نویسندگان
Dharshana N. Wijesundera, Quark Chen, Ki Bui Ma, Xuemei Wang, Buddhi Tilakaratne, Wei-Kan Chu,