The influence of localized states charging on 1/f^α tunneling current noise spectrum

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We report the results of theoretical investigations of low frequency tunneling current noise spectra component (1/f^α). Localized states of individual impurity atoms play the key role in low frequency tunneling current noise formation. It is found that switching "on" and "off" of Coulomb interaction of conduction electrons with one or two charged localized states results in power law singularity of low-frequency tunneling current noise spectrum 1/f^α. Power law exponent in different low frequency ranges depends on the relative values of Coulomb interaction of conduction electrons with different charged impurities.
7 pages, 5 figures

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Materials Science, Other Condensed Matter

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http://salesiana.dossiersoluciones.com/handle/123456789/171276

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0802.2028
 http://arxiv.org/abs/0802.2028
 Solid State Communications, vol. #147, pages 278-283, 2008
 doi:10.1016/j.ssc.2008.05.041

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arXiv