摘要翻译：
在快速重离子辐照下，从包埋金纳米粒子溅射出的Au团簇中，发现了两个关于$n$-原子团簇尺寸分布的指数:$y(n)\sim n^{-\delta}$。对于尺寸小于12.5nm的小团簇，$\delta$为3/2，这可以归结为一个与尺寸无关的稳态聚集过程。对于较大的团簇，$\delta值建议为7/2，这可能来自于向另一个稳态的动力学转变，在此稳态中聚集和蒸发速率与尺寸有关。在目前的情况下，观察到的衰变指数不支持任何发生热力学液-气型相变的可能性，从而导致团簇的形成。
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英文标题：
《Observation of a Universal Aggregation Mechanism and a Possible Phase
  Transition in Au Sputtered by Swift Heavy Ions》
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作者：
P. K. Kuiri, B. Joseph, H. P. Lenka, G. Sahu, J. Ghatak, D. Kanjilal,
  and D. P. Mahapatra
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最新提交年份：
2009
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分类信息：

一级分类：Physics        物理学
二级分类：Materials Science        材料科学
分类描述：Techniques, synthesis, characterization, structure.  Structural phase transitions, mechanical properties, phonons. Defects, adsorbates, interfaces
技术，合成，表征，结构。结构相变，力学性质，声子。缺陷，吸附质，界面
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一级分类：Physics        物理学
二级分类：Statistical Mechanics        统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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英文摘要：
  Two exponents, $\delta$, for size distribution of $n$-atom clusters, $Y(n)\sim n^{-\delta}$, have been found in Au clusters sputtered from embedded Au nanoparticles under swift heavy ion irradiation. For small clusters, below 12.5 nm in size, $\delta$ has been found to be 3/2, which can be rationalized as occurring from a steady state aggregation process with size independent aggregation. For larger clusters, a $\delta$ value of 7/2 is suggested, which might come from a dynamical transition to another steady state where aggregation and evaporation rates are size dependent. In the present case, the observed decay exponents do not support any possibility of a thermodynamic liquid-gas type phase transition taking place, resulting in cluster formation.
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PDF链接：
https://arxiv.org/pdf/802.2494