Classical microscopic models of Johnson noise
作者:
J. K. E. Tunaley,
期刊:
American Journal of Physics
(AIP Available online 1975)
卷期:
Volume 43,
issue 5
页码: 446-448
ISSN:0002-9505
年代: 1975
DOI:10.1119/1.9823
出版商: American Association of Physics Teachers
数据来源: AIP
摘要:
It is demonstrated that a commom microscopic model of a resistor exhibits a reactive component of the admittance which dominates at sufficiently high frequencies and causes a decrease in the noise spectral density of the current fluctuations. In addition, Nyquist’s theorem is derived for the general classical case including the coulomb interactions between the carriers and the influence of the lattice potential. The significance of the real part of the admittance is made apparent directly.
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