Mechanism of the formation of deformation steps of nanometric sizes at the surface of plastically deformed crystals

被引：0
|
作者：
G. A. Malygin
机构：
[1] Russian Academy of Sciences,Ioffe Physicotechnical Institute
来源：
Physics of the Solid State | 2001年 / 43卷
关键词：
Spectroscopy; State Physics; Growth Kinetic; Scanning Tunneling Microscope; Screw Dislocation;
D O I：
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中图分类号：
学科分类号：
摘要：
The mechanism of the formation of nanometric-size deformation steps at the surface of plastically deformed crystals is discussed theoretically. Such steps are detected by means of a scanning tunneling microscope or by high-resolution speed filming. The analysis shows that the exponential step distribution by height is due to the double cross slip (DCS) of screw dislocations and that the growth kinetics of separate steps is deter-mined by the kinetics of the Frank-Read dislocation sources appearing as a result of the DCS.
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页码：257 / 262
页数：5
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