Anomalous patterns and nearly defect-free ripples produced by bombarding silicon and germanium with a beam of gold ions

被引：40
|
作者：
Mollick, Safiul Alam [1 ]
Ghose, Debabrata [1 ]
Shipman, Patrick D. [2 ]
Bradley, R. Mark [3 ]
机构：
[1] Saha Inst Nucl Phys, Kolkata 700064, India
[2] Colorado State Univ, Dept Math, Ft Collins, CO 80523 USA
[3] Colorado State Univ, Dept Phys, Ft Collins, CO 80523 USA
来源：
APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 04期
基金：
美国国家科学基金会;
关键词：
SURFACES;
D O I：
10.1063/1.4863342
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We demonstrate that surface ripples with an exceptionally high degree of order can develop when germanium is bombarded with a broad beam of gold ions. In contrast, if silicon is sputtered with an Au- beam, patches of ripples with two distinct wave vectors can emerge. These types of order can be understood if the coupling between the surface morphology and composition is taken into account. (C) 2014 AIP Publishing LLC.
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页数：4
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