摘要
我们由格子动力学和转移矩阵的技术的模型在 generalFibonacci quasicrystal 调查声子传播和热传导力。它群众的 quasiperiodic 分发可以极大地破坏的 isfound 在两 lowand 的声子运输高频率并且可以因此影响热传导力。在有 thetemperature 的另外的增加的低温度和显示浸透的热传导力 increaseswith 温度。甚至当在 theFibonacci 链的原子的集体比率被改变时，如此的浸透行为被保存。
We investigate the phonon transmission and thermal conductance in a general Fibonacci quasicrystal by the model of lattice dynamics and the technique of transfer matrix. It is found that quasiperiodic distribution of masses may greatly destroy the phonon transport at both low and high frequencies and thus may affect the thermal conductance. The thermal conductance increases with temperature at low temperatures and displays saturation with further increase of the temperature. Such saturation behaviour is preserved even when the mass ratio of atoms in the Fibonacci chain is changed.
基金
Supported by the National Natural Science Foundation of China under Grant Nos 60276005 and 10474033, and the Youth Foundation of College of Science, Nanjing University of Aeronautics and Astronautics.
