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A THEORY ON THE 1/f NOISE IN METALS

YU MING-KANG LIU FU-SUI

A THEORY ON THE 1/f NOISE IN METALS

YU MING-KANG, LIU FU-SUI
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  • Received Date:  21 April 1982
  • Published Online:  21 July 2005

A THEORY ON THE 1/f NOISE IN METALS

  • 1. 北京大学物理系

Abstract: In this paper, we suggest a new physical mechanism for the in 1/f noise metals phenomena, which have a history of experimental observation for more than forty years. We propose that the 1/f noise is caused by the diffusion transportation with infrared divergence of the local electrons in metals. Based on the general theory of the low-frenquency fluctuation, dissipation and relaxation, a non-Markovian diffusion equation is established. The noise spectra deduced from this equation can explain the four basic characteristics of the 1/f noise. With reasonable choice of parameters, our noise spectra agree fairly well with experimental results. Some further discussions concerning the current theory and related problems are also given.

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