Huang Guan-Rong, Wang Yangyang, Do Changwoo, Chen Wei-Ren
Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
Phys Rev E. 2020 Sep;102(3-1):032110. doi: 10.1103/PhysRevE.102.032110.
We develop a phenomenological model to describe the structure of radially symmetric paracrystals whose long-range order are destroyed by propagation of particle fluctuations. General expressions are derived for the spatial correlation functions in one-, two-, and three-dimensional spaces. And the spatial correlation in paracrystals in reciprocal space is further discussed and clarified. The developed method can be used to quantitatively analyze the microstructure of paracrystalline materials in both real and reciprocal spaces via scattering experiments and computer simulations.
我们开发了一个唯象模型来描述径向对称准晶体的结构，其长程序因粒子涨落的传播而被破坏。推导了一维、二维和三维空间中空间关联函数的一般表达式。并进一步讨论和阐明了倒易空间中准晶体的空间相关性。所开发的方法可用于通过散射实验和计算机模拟在实空间和倒易空间中定量分析准晶材料的微观结构。
