Comment on "Scaling behavior of one-dimensional Pt chains migration on Pt(110)-(1x2) surface" [Phys. Lett. A 268 (2000) 413]

被引:0
|
作者
Montalenti, F
Ferrando, R
机构
[1] Univ Genoa, Dipartimento Fis, INFM, I-16146 Genoa, Italy
[2] Univ Genoa, Dipartimento Fis, CNR, CFSBT, I-16146 Genoa, Italy
[3] Univ Calif Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
关键词
scaling relation; one-dimensional Pt chains; leapfrog diffusion mechanism; cluster displacement rate;
D O I
10.1016/S0375-9601(00)00707-6
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We show that the recently proposed scaling laws [see G. Zhuang, W. Wang, Phys. Lett. A 268 (2000) 413] for chain diffusion on missing-row Pt(110) have no real meaning, since they cannot be extended outside the narrow chain-length range which has been considered by Zhuang and Wang. The only asymptotic scaling law gives a chain mobility which is inversely proportional to the chain length; however this asymptotic scaling behaviour is not physically important due to the occurrence of multiple upward promotions for long chains. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:185 / 187
页数:3
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