Self-Organization of Nanoislands on the Surface of Silicon and Gallium Arsenide Single Crystals Stimulated by Spatially Periodic Laser Radiation Fields

Autor: E Ya Daume, S. V. Tikhov, Yu. K. Verevkin, V N Petryakov, Yu. Yu. Gushchin
Rok vydání: 2005
Předmět:
Zdroj: Technical Physics Letters. 31:759
ISSN: 1063-7850
DOI: 10.1134/1.2061738
Popis: Four interfering laser beams acting upon the surface of silicon and gallium arsenide single crystals stimulate the self-organization of nanoislands, which is manifested by the development of processes controlling the size of islands in a two-dimensional periodic structure formed on the sample surface. The influence of the polarization of interfering beams on the character of this self-organization has been studied. Islands with lateral dimensions from 60 to 100 nm and a height of 6–12 nm have been obtained. The lateral dimensions of nanoislands are 5–10 times smaller than the period of a standing wave of the laser radiation field, which is explained by the influence of elastic stresses developed at the crystal surface.
Databáze: OpenAIRE