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摘要翻译：
研究了两种尺寸颗粒随机沉积的三维双斜弹道沉积(BBD)沉积层外表面粗糙度和内部多孔结构的尺度变化。粗糙度和动力学指数的系统外推和粗糙度分布的比较表明，对于大小颗粒通量的任何比值F,顶面都存在Kardar-Parisi-Zhang标度。尺度理论预测了BBD从随机生长到相关生长交叉的特征时间，并给出了KPZ区粗糙度尺度振幅与F之间的关系。镀层的孔隙率随F单调增加，当F较小时，其尺度为F^{1/2}，这也用尺度法解释，说明了表面生长规律与块体性质联系起来的可能性。与其它类似球状模型相比，BBD中弛豫机制的抑制增强了镀层的连通性，使镀层渗滤到f~0.05。渗流沉积物内表面的分形维数为D_f~2.9，与其它类似球状模型的数值非常接近，表明这些体系具有通用性。
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英文标题：
《Surface and Bulk Properties of Deposits Grown with a Bidisperse
Ballistic Deposition Model》
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作者：
F. A. Silveira and F. D. A. Aar\~ao Reis
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最新提交年份：
2007
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分类信息：
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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一级分类：Physics 物理学
二级分类：Soft Condensed Matter 软凝聚态物质
分类描述：Membranes, polymers, liquid crystals, glasses, colloids, granular matter
膜，聚合物，液晶，玻璃，胶体，颗粒物质
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英文摘要：
We study roughness scaling of the outer surface and the internal porous structure of deposits generated with the three-dimensional bidisperse ballistic deposition (BBD), in which particles of two sizes are randomly deposited. Systematic extrapolation of roughness and dynamical exponents and the comparison of roughness distributions indicate that the top surface has Kardar-Parisi-Zhang scaling for any ratio F of the flux between large and small particles. A scaling theory predicts the characteristic time of the crossover from random to correlated growth in BBD and provides relations between the amplitudes of roughness scaling and F in the KPZ regime. The porosity of the deposits monotonically increases with F and scales as F^{1/2} for small F, which is also explained by the scaling approach and illustrates the possibility of connecting surface growth rules and bulk properties. The suppression of relaxation mechanisms in BBD enhances the connectivity of the deposits when compared to other ballisticlike models, so that they percolate down to F~0.05. The fractal dimension of the internal surface of the percolating deposits is D_F~2.9, which is very close to the values in other ballisticlike models and suggests universality among these systems.
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PDF链接：
https://arxiv.org/pdf/706.3882
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