多层二元体吸附的一般化模型的物理性质
G Palacios1, Sumanta Kundu2,3, L A P Santos1,4
1CRCN-NE/CNEN, 50740-545, Recife, PE, Brazil.
Physical review. E
|October 18, 2023
概括
沉积的二极体的定向异质性显著影响多层吸附系统中的多孔结构形成和电导率. 爱因斯坦电导率关系仅在特定的限制情况下有效.
科学领域:
- 物理 物理学 物理
- 材料科学 材料科学 材料科学
- 化学 化学 化学
背景情况:
- 具有碎形结构的复杂多孔结构通过逐渐沉积过程形成.
- 多层吸附和二聚体沉积是理解材料性质的关键现象.
研究的目的:
- 为了研究由二聚体沉积形成的复杂多孔结构的运输特性.
- 分析二次方位异构对结构形成和系统导电性的影响.
- 在不同异构度参数下检查缩放关系和碎形维度.
主要方法:
- 使用广泛的数值模拟来建模多层吸附和二聚体沉积.
- 沉积的二次体的方向性异构度参数 (p0) 被系统地变化.
- 对不同p0值进行了多层接口的碎形维度监测.
主要成果:
- 迪默定向异质性显著地决定了多孔系统的结构和物理特征.
- 爱因斯坦电导率关系仅在p0→1.1的极限情况下才成立.
- 对于p0 > 0.2,接口表现出自我避开的随机步行特征,与p0→0情况不同,这类似于透集群.
结论:
- 定向异构度的程度是控制无序系统属性的关键因素.
- 研究结果为科学,技术和环境研究相关的无形和无序系统的基本机制提供了见解.
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