Fluctuation in the Scattering Probability of an Electron in a One-Dimensional Nonlinear Lattice System
Fluctuation in the Scattering Probability of an Electron in a One-Dimensional Nonlinear Lattice System
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一维非线性晶格系统中电子散射概率的涨落
DOI：
10.1143/jpsj.80.074002
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发表时间：
2011
影响因子：
1.7
通讯作者：
H. Akabane
中科院分区：
文献类型：
--
作者：
矢内浩文;高柳ちひろ;今枝 靖;古橋翔,早川美徳;S. Furuhashi and Y. Hayakawa;Y. Hayakawa and S. Furuhashi;H. Akabane
本文研究了一维非线性晶格系统中电子散射几率的涨落。模拟了原子的振动，研究了电子被声学声子散射几率的涨落。结果表明，当系统温度足够高时，平衡声子模态电子散射几率的涨落在低频区呈现1/fα谱。此外，组成系统的原子数的依赖性进行了研究。1/fα谱在大系统中比在小系统中更容易观察到。
In this research, we study the fluctuation in the scattering probability of an electron in a nonlinear one-dimensional lattice system. A simulation of atomic vibration is performed and the fluctuation in the electron scattering probability by acoustic phonons is investigated. It is found that the fluctuation in the electron scattering probability of the equilibrium phonon mode state shows a 1/fαspectrum in the low-frequency range, provided that the temperature of the system is sufficiently high. Furthermore, the dependence of the number of atoms constituting the system is investigated. The 1/fαspectrum is more easily observed in a larger system than in a smaller one.