Research of 1/f Resistance Fluctuation

1/f电阻波动研究

• 批准号: 13640379
• 负责人: AKABANE Hideo
• 金额: $ 2.43万
• 依托单位: Ibaraki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13640379/
• 关键词: 1; f fluctuation; lattice vibration; phonon; nonlinear interaction; scattering cross section; carbon fiber; f ゆらぎ; 非線形; エネルギー拡散; 非線形ポテンシャル; エネルギー等分配; 粘性流体

In the present study, 1/f resistance fluctuations of the carbon fiber are measured under the condition that the tension of the carbon fiber is changes. We found the fact that the influence of the applied tension on the mean value of the resistance is very small, but the intensity of 1/f resistance fluctuations increases significantly by the increase of the tension. Our experimental results suggest that the origin of 1/f resistance fluctuation relates to nonlinear interaction among the lattices; when tension is applied, the size of the lattices become large by plastic deformation and the non-linear interaction among the lattices will also be caused.One-dimensional nonlinear atomic chain under periodic boundary condition was studied with by computer simulation. Scattering probability S8t) of the electron shows the 1/f^a (a〜1.2) PSD in a wide frequency range. The Fluctuation of the S(t) has the same correlation property as that of the 1/f fluctuation generated by 1/2-order integration of white noise and the simulation. The above fact was in agreement with the experimental result of carbon resister fluctuation.

在改变碳纤维张力的情况下，测量了碳纤维的1/f电阻波动。我们发现，外加张力对电阻平均值的影响很小，但1/f电阻波动的强度随着张力的增大而显著增大。我们的实验结果表明，1/f电阻起伏的产生与晶格之间的非线性相互作用有关；当施加张力时，晶格的尺寸因塑性变形而变大，晶格之间的非线性相互作用也会引起。用计算机模拟周期边界条件下的一维非线性原子链。电子的散射几率S8t在较宽的频率范围内表现出1/f^a(a~1.2)的PSD。S(T)的起伏与白噪声1/2阶积分产生的1/f起伏与模拟结果具有相同的相关性。上述事实与碳阻波动的实验结果相吻合。

项目成果

M.Agu, H.Akabane: "1/f Noise as a Nonequilibrium Temperature Fluctuation"Journal of Physical Society of Japan. 72. 2396-2397 (2003)

M.Agu，H.Akabane：“1/f 噪声作为非平衡温度波动”日本物理学会杂志。

H.Akabane, M.Agu: "Fluctuation of the Scattering Probability of electron by Acoustic Phonon"Japanese Journal of Applied Physics. (掲載決定).

H.Akabane、M.Agu：“声学声子对电子散射概率的波动”《日本应用物理学杂志》（已出版）。

H.Akabane, M.Agu: "Fluctuation of the scattering probability of electron by acoustic phonon"Noise in Physical Systems and 1/f Fluctuations 2003. 17. 667-670 (2003)

H.Akabane, M.Agu：“声学声子对电子散射概率的波动”物理系统中的噪声和 1/f 波动 2003. 17. 667-670 (2003)

H. Akabane, J. Hiramatsu, M. Sato, M. Agu): "1/f Resistance Fluctuation of a Carbon Fiber"Japanese Journal of Applied Physics. vol.40. L994-L996 (2001)

H. Akabane、J. Hiramatsu、M. Sato、M. Agu）：“碳纤维的 1/f 电阻波动”日本应用物理学杂志。

(H. Akabane, M. Agu): "1/f Resistance Fluctuation of the Carbon Fiber"Noise in Physical Systems and 1/f Fluctuations 2001. 99-102 (2001)

(H. Akabane, M. Agu)：“碳纤维的 1/f 电阻波动”物理系统中的噪声和 1/f 波动 2001. 99-102 (2001)