Emission of supersonic soliton wave beams-generators of restructuring of nanocrystals under atom bombardment, and the self-organization of a dynamic superlattice of complexes of soliton atomic vibrations

被引:11
作者
Dubovsky, O. A. [1 ]
Orlov, A. V. [1 ]
机构
[1] Leypunsky Inst Phys & Power Engn, Obninsk 249033, Kaluzhskaya Obl, Russia
基金
俄罗斯基础研究基金会;
关键词
CRYSTALS; MODES;
D O I
10.1134/S1063783410050033
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
It has been shown that the dynamic superlattice of pulsed complexes of soliton vibrations or, actually, a "soliton crystal" is self-organized in crystalline materials at high levels of thermal and dynamic excitations of atomic vibrations. The results obtained have been adapted to the alpha uranium crystal system. It has been demonstrated that the atom bombardment of crystalline materials leads to the generation of beams of nonlinear subsonic and supersonic soliton and breather waves. The breathers and solitons initiate threshold kinetic processes of defect formation, such as surface vibrations and evaporation of surface atoms, multiple reflection of bombarding atoms, and restructuring of nanocrystals. The results obtained can be used in experimental investigations of microdynamics of materials under high dynamic and temperature loads by the neutron and ion scattering methods.
引用
收藏
页码:899 / 903
页数:5
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