Radiation-stimulated surface diffusion of adatoms on a tungsten {321} face

被引：0
|
作者：
Sadanov, E. V. [1 ]
机构：
[1] Kharkiv Inst Phys & Technol, Natl Sci Ctr, UA-61108 Kharkov, Ukraine
来源：
TECHNICAL PHYSICS LETTERS | 2015年 / 41卷 / 06期
基金：
俄罗斯基础研究基金会;
关键词：
ION-BOMBARDMENT; EMITTER;
D O I：
10.1134/S1063785015060280
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The surface erosion of tungsten bombarded with accelerated 5-keV helium atoms has been studied by the method of field-ion microscopy. Radiation-stimulated appearance of adatoms localized in the central region of terraces on the {321} W face has been observed. The distribution of W adatoms on {321} terraces is characterized by the presence of zones free of adatoms in the vicinity of atomic steps. The existence of "empty" zones upon irradiation is evidence of transient surface diffusion. The diffusion path lengths of adatoms on the {321} W face reach six interatomic distances and reveal anisotropy of the radiation-stimulated transient surface diffusion.
引用
收藏
页码：571 / 574
页数：4
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