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arXiv 0802.2503cond-mat.stat-mechcond-mat.mtrl-sci
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没有吸引力相互作用的岛屿形成

Island formation without attractive interactions

A. P. J. Jansen

摘要:

我们表明,吸附在表面上可以形成岛屿,即使没有吸引力的相互作用。相反,在短距离处的吸附物之间的强排斥可以导致岛,因为这样的岛增加了不是岛的一部分的吸附物的熵。我们认为这种机制导致了O/Pt(111)中观察到的岛的形成,但它可能对许多其他系统也很重要。

英文摘要:

We show that adsorbates on surfaces can form islands even if there are no attractive interactions. Instead strong repulsion between adsorbates at short distances can lead to islands, because such islands increase the entropy of the adsorbates that are not part of the islands. We suggest that this mechanism cause the observed island formation in O/Pt(111), but it may be important for many other systems as well.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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