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arXiv · 2106.02683

1/f noise spectroscopy and noise tailoring of nanoelectronic devices

Zoltán Balogh·Gréta Mezei·László Pósa·Botond Sánta·András Magyarkuti·András Halbritter
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Abstract

In this paper, we review the 1/f-type noise properties of nanoelectronic devices focusing on three demonstrative platforms: resistive switching memories, graphene nanogaps and single-molecule nanowires. The functionality of such ultrasmall devices is confined to an extremely small volume, where bulk considerations on the noise loose their validity: the relative contribution of a fluctuator heavily depends on its distance from the device bottleneck, and the noise characteristics are sensitive to the nanometer-scale device geometry and the details of the mostly non-classical transport mechanism. All these are reflected by a highly system-specific dependence of the noise properties on the active device volume (and the related device resitance), the frequency, or the applied voltage. Accordingly, 1/f-type noise measurements serve as a rich fingerprint of the relevant transport and noise-generating mechanisms in the studied nanoelectronic systems. Finally, we demonstrate that not only the fundamental understanding and the targeted noise suppression is fueled by the 1/f-type noise analysis, but novel probabilistic computing hardware platforms heavily seek well tailorable nanoelectric noise sources.

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Zoltán Balogh, Gréta Mezei, László Pósa, Botond Sánta, András Magyarkuti, András Halbritter. 2021-06-04. 1/f noise spectroscopy and noise tailoring of nanoelectronic devices. https://arxiv.org/abs/2106.02683

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