【摘要】 运用Ford-Kac-Mazur(FKM)方法对一维介电原子链进行了研究,在固定和自由边界条件下得到了热流的具体表达式,通过数值模拟,给出了不同条件下热流随体系大小的变化趋势。通过对比我们发现,边界条件、有序与无序对一维介电原子链的热传导有很大的影响。另外,傅里叶定律在简单的介电原子链中不成立。更多还原

【Abstract】 The thermal transport in 1D dielectric atomic chain was studied by the Ford-Kac-Mazur(FKM) method in this paper.We obtained the specific expression of heat current under fixed and free boundary conditions.By numerical simulation,we get the picture of heat current verse to system size under different boundary conditions.By contrast we found that boundary conditions,order and disorder have played an important role for thermal transport in 1D dielectic chain.In addition,the Fourier’s law was not hold in dielectric harmonic chain.更多还原