Flattening of grooves on a crystal surface: a method of investigation of surface roughness
Flattening of grooves on a crystal surface: a method of investigation of surface roughness
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晶体表面凹槽的平坦化：一种研究表面粗糙度的方法
DOI：
10.1051/jphys:01988004902025700
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发表时间：
1988
期刊：
影响因子：
--
通讯作者：
J. Villain
中科院分区：
文献类型：
--
作者：
A. Rettori;J. Villain
本文用定性理论研究了在粗糙化过渡区以下的晶体表面上人工产生的轮廓的衰减。在双向调制的情况下，高度h（t）是时间t的线性函数，并且寿命τ与λ 3 h（0）成比例，其中λ是波长。正如Bonzel等人所建议的，小平面的形成是确定表面是否低于其粗糙化温度的敏感信息。在平坦部分附近，轮廓具有（x-x 0）3/2奇异性，如同处于平衡状态的晶体。单向调制的情况仍然是开放的，虽然一些启发式给出了与实验结果定性一致的理论和定性的演变的硅creuses一个la表面的一个monocristal en dessous的sa温度的转变rugueuse
The decay of a profile artificially produced on a crystal surface below its roughening transition is studied by means of a qualitative theory. In the case of a bidirectional modulation the height h(t) is a linear function of time t and the lifetime τ is proportional to λ 3 h(0), where λ is the wavelength. As suggested by Bonzel et al. the formation of facets is a sensitive information to determine whether a surface is below its roughening temperature. Near the flat part the profile has a (x-x 0 ) 3/2 singularity as in a crystal at equilibrium. The case of a unidirectionnel modulation is still open although some heuristic give a qualitative agreement with experimental results Etude theorique et qualitative de l'evolution de sillons creuses a la surface d'un monocristal en dessous de sa temperature de transition rugueuse