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Comparison of linear and quadratic dispersion models for phonon transport in one-dimensional mass-disordered systems
APL Materials ( IF 6.1 ) Pub Date : 2021-08-13 , DOI: 10.1063/5.0058493
N. Mori 1 , A. Komada 1 , G. Mil’nikov 1
Affiliation  

Thermal conductance, K, of one-dimensional mass-disordered systems is calculated. Two types of dispersion models are considered: linear and quadratic dispersion model. For the linear dispersion model, the thermal conductance shows the super-diffusive nature, which is consistent with the previous research. For the quadratic dispersion model, the thermal conductance exhibits the normal-diffusion in which K is inversely proportional to the system size.

中文翻译:

一维质量无序系统中声子传输的线性和二次色散模型的比较

计算一维质量无序系统的热导率K。考虑了两种类型的色散模型:线性和二次色散模型。对于线性色散模型,热导表现出超扩散性质,这与之前的研究一致。对于二次色散模型,热导表现出正常扩散,其中K与系统尺寸成反比。
更新日期:2021-08-31
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