Kinetic theory of cluster impingement in film growth at solid surfaces: interplay between island density and adatom lifetime

被引:8
作者
Tomellini, M
Fanfoni, M
机构
[1] Univ Roma Tor Vergata, Dipartimento Sci & Tecnol Chim, I-00133 Rome, Italy
[2] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy
[3] Ist Nazl Fis Mat, I-00133 Rome, Italy
关键词
computer simulations; growth; models of surface kinetics;
D O I
10.1016/S0039-6028(00)00121-7
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The kinetic theory of cluster impingement during phase transitions occurring by simultaneous nucleation and cluster growth has been developed for both ID and 2D cases. In contrast with the 1D case, in the 2D case, owing to the complexity of the mathematical computation, only an approximate estimate of the kinetics is actually possible. However, an analytical approach is also proposed which very well reproduces the exact 2D kinetics as obtained by Monte Carlo (MC) simulations. The interplay between the impingement kinetics and the adatom lifetime in thin him growth at surfaces is analysed and discussed in connection with computer simulation. It is also shown how the k-point space correlation functions enter in the expressions of the impingement kinetics and adatom lifetime. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
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页码:L267 / L272
页数:6
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