论文标题
原子量表的声子干扰
Phonon Interference at the Atomic Scale
论文作者
论文摘要
使用分子动力学模拟在包含结晶硅和纳米障碍物的系统中，在原子量表上观察到了声子衍射和干扰模式。这些与声子波长相同的纳米架构系统引起的衍射模式与简单的菲涅尔 - 基尔chhoff积分所预测的衍射模式相似，由于障碍物的性质和晶体硅的各向异性，其差异存在一些差异。这些发现给出了声子的波性质的证据，可以帮助更好地理解声子与纳米对象的相互作用，并且长期可以对纳米级的智能热管理和声子频率过滤有用。
Phonons diffraction and interference patterns are observed at the atomic scale, using molecular dynamics simulations in systems containing crystalline silicon and nanometric obstacles as voids or amorphous-inclusions. The diffraction patterns caused by these nano-architectured systems of the same order as the phonon wavelengths are similar to the ones predicted by a simple Fresnel-Kirchhoff integral, with a few differences due to the nature of the obstacle and the anisotropy of crystalline silicon. These findings give evidence of the wave nature of phonons, can help to a better comprehension of the interaction of phonons with nanoobjects and at long term can be useful for intelligent thermal management and phonon frequency filtering at the nanoscale.
