Electrons at Disordered Surfaces and $\frac{1}{f}$ Noise

8 December 1986

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 57 (23) , 2983-2986
https://doi.org/10.1103/physrevlett.57.2983

Abstract

We calculate for the first time the distribution of energy widths for Anderson localized states at a surface and show that electrical noise is produced with a

\frac{1}{f}

spectrum. The distribution has a natural cut-off at widths of

\frac{ℏ}{l_{c}}

, where

l_{c} \propto \exp (\frac{δ^{' 2} L}{2})

and

δ^{' 2}

measures the disorder;

l_{c}

is typically many hours. The scanning tunneling microscope is proposed as the ideal device for observing these fluctuations.

Keywords

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Electrons at Disordered Surfaces and1fNoise

Abstract

Keywords

Electrons at Disordered Surfaces and $\frac{1}{f}$ Noise