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Low-frequency noise with a spectral density that depends inversely on frequency (f) has been observed in a wide variety of systems including current fluctuations in resistors, intensity fluctuations in music and signals in human cognition.…

Mesoscale and Nanoscale Physics · Physics 2015-06-16 Alexander A. Balandin

Dedicated analog neurocomputing circuits are promising for high-throughput, low power consumption applications of machine learning (ML) and for applications where implementing a digital computer is unwieldy (remote locations; small, mobile,…

Neural and Evolutionary Computing · Computer Science 2025-11-18 Ye min Thant , Methawee Nukunudompanich , Chu-Chen Chueh , Manabu Ihara , Sergei Manzhos

Low frequency noise close to the carrier remains little explored in spin torque nano oscillators. However, it is crucial to investigate as it limits the oscillator's frequency stability. This work addresses the low offset frequency flicker…

Low-frequency $1/f^{\gamma}$ noise is ubiquitous, even in high-end electronic devices. For qubits such noise results in decrease of their coherence times. Recently, it was found that adsorbed O$_2$ molecules provide the dominant…

Mesoscale and Nanoscale Physics · Physics 2021-10-04 Masahiro Kamada , Antti Laitinen , Weijun Zeng , Marco Will , Jayanta Sarkar , Kirsi Tappura , Heikki Seppä , Pertti Hakonen

Low-frequency 1/f noise is ubiquitous, and dominates the signal-to-noise performance in nanodevices. Here we investigate the noise characteristics of single-layer and bilayer graphene nano-devices, and uncover an unexpected 1/f noise…

Materials Science · Physics 2008-02-29 Yu-Ming Lin , Phaedon Avouris

We have investigated the low frequency (f) flicker (also called 1/f) noise of single-layer graphene devices on h-BN (placed on SiO2/Si) along with those on SiO2/Si. We observe that the devices fabricated on h-BN have on average one order of…

Mesoscale and Nanoscale Physics · Physics 2015-09-30 Morteza Kayyalha , Yong P. Chen

The low-frequency noise (LF-noise) of deep submicron MOSFETs is experimentally studied with special emphasis on yield relevant parameter scattering. A novel modeling approach is developed which includes detailed consideration of statistical…

Other Condensed Matter · Physics 2009-11-10 Gilson I Wirth , Jeongwook Koh , Roberto da Silva , Roland Thewes , Ralf Brederlow

Variability of low frequency noise (LFN) in MOSFETs is bias-dependent. Moderate- to large-sized transistors commonly used in analog/RF applications show 1/f-like noise spectra, resulting from the superposition of random telegraph noise…

Mesoscale and Nanoscale Physics · Physics 2020-09-03 Nikolaos Mavredakis , Nikolaos Makris , Predrag Habas , Matthias Bucher

This report is aimed at reviving the explanation of flicker-noise observations as the result of spectral measurement of very low-frequency but stationary narrow-band fluctuations named as infralow-frequency noise (ILF noise) [A. Ya.…

Statistical Mechanics · Physics 2009-11-11 A. Ya. Shul'man

It is shown, with citing tunnel junction as an example, that mutual interplay of electron quantum transfers in a conducting system can be the fast mechanism for generation fundamental low-frequency flicker conductance fluctuations (1/f…

Statistical Mechanics · Physics 2007-05-23 Yu. E. Kuzovlev , Yu. V. Medvedev , A. M. Grishin

The nature of the low-frequency current fluctuations, i.e. carrier number vs. mobility, defines the strategies for noise reduction in electronic devices. While the 1/f noise in metals has been attributed to the electron mobility…

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…

Mesoscale and Nanoscale Physics · Physics 2021-06-08 Zoltán Balogh , Gréta Mezei , László Pósa , Botond Sánta , András Magyarkuti , András Halbritter

Fundamental issues of 1/f noise in quantum nanoscience are reviewed starting from basic statistical noise processes. Fundamental noise models based on two-level systems (TLS) are described. We emphasize the importance of TLSs in materials…

Mesoscale and Nanoscale Physics · Physics 2024-01-23 Giuseppe Falci , Pertti J. Hakonen , Elisabetta Paladino

We calculate low-frequency noise (LFN) in a quantum point contact (QPC) which is electrostatically defined in a 2D electron gas of a GaAs-AlGaAs heterostructure. The conventional source of LFN in such systems are scattering potentials…

Condensed Matter · Physics 2009-10-22 J. P. Hessling , Yu. Galperin

Low-frequency noise with the spectral density S(f)~1/f^g (f is the frequency and g~1) is a ubiquitous phenomenon, which hampers operation of many devices and circuits. A long-standing question of particular importance for electronics is…

Mesoscale and Nanoscale Physics · Physics 2015-06-12 Guanxiong Liu , Sergey Rumyantsev , Michael S. Shur , Alexander A. Balandin

Transition metal dichalcogenide field-effect transistors (FETs) have been actively explored for low-power electronics, light detection, and sensing. Albeit promising, their performance is strongly limited by low-frequency noise (LFN). Here,…

Mesoscale and Nanoscale Physics · Physics 2017-04-04 Isidoro Martinez , Mario Ribeiro , Pablo Andres , Luis E. Hueso , Felix Casanova , Farkhad G. Aliev

Low-frequency 1/f voltage noise has been employed to probe stochastic charge dynamics in AlO$_{x}$-based non-volatile resistive memory devices exhibiting both resistive switching (RS) and magneto-resistive (MR) effects. A 1/f$^{\gamma}$…

Mesoscale and Nanoscale Physics · Physics 2021-10-19 Jhen-Yong Hong , Chun-Yen Chen , Dah-Chin Ling , Isidoro Martínez , César González-Ruano , Farkhad G. Aliev

Non-negative matrix factorization (NMF) and its variants have been widely employed in clustering and classification tasks (Long, & Jian , 2021). However, noises can seriously affect the results of our experiments. Our research is dedicated…

Machine Learning · Computer Science 2023-12-05 Cheng Zeng , Jiaqi Tian , Yixuan Xu

Interest in understanding the interplay between noise and the response of a non-linear device cuts across disciplinary boundaries. It is as relevant for unmasking the dynamics of neurons in noisy environments as it is for designing reliable…

Biological Physics · Physics 2011-05-16 Cameron Sobie , Arif Babul , Rogerio de Sousa

Measurements of the low frequency electrical noise in the ferromagnetic semiconductor (Ga,Mn)As reveal an enhanced integrated noise at low temperature. For moderate localization, we find a 1/f normalized power spectrum density over the…

Materials Science · Physics 2010-06-30 M. Zhu , X. Li , G. Xiang , N. Samarth
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