Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
In this talk, we are briefly surveying our recent results [1] challenging the claim that the memristor is the “Missing circuit element” [2]. The crucial question is if the memristor equations guarantee that the device can be realized by passive components. With active components and feedback, arbitrary device characteristics can be realized. Recent work of Chua indicates [3] that certain type of memristor...
We recently presented [1] experimental results on multimode correlations obtained from pumped superconducting microwave cavity cooled down to its ground state. These correlations originate from an interaction of the pump field with the quantum fluctuations of vacuum in the cavity which includes a pump-amplitude-dependent reactance. In this paper we discuss the nature of the created multimode correlations...
We analyze the first passage time problem for the electrochemical stochastic diffusion governed by the Fokker—Planck equation in the form of Cattaneo equation. We find the characteristic function of the first passage time for the stochastic process that we consider. We show that variance of the first passage time for the stochastic process that we consider coincides with variance of the first passage...
In this talk, we are briefly surveying our recent results [1–3] about two very popular yet often misunderstood concepts in physical informatics: (i) The existence of Johnson noise at near to absolute zero temperature has been debated many times yet it is generally accepted [1]. We point out the fundamental problems [2] with the particular approach the related quantum theories [4] of Fluctuation-Dissipation...
Schottky diodes are key elements of RF and terahertz electronics. The design of the lateral Schottky with the contact directly to the side of the electron 2D channel in GaN/AlGaN system provides an advantage of extremely small capacitance and series resistance. The lateral Schottky devices based on high quality GaN/AlGaN heterostructures were grown by molecular beam epitaxy. The current voltage characteristics...
Generalized quantum measurement schemes are described by positive operator-valued measures going beyond the projection postulate, which predicts the instantaneous collapse of the systems wave function. This allows to take the noninvasive limit and investigate the correlations of such weak measurements which enables the observation of non-commuting observables within the same system. We propose a scheme...
Resistance flicker noise of gas sensors gives a new opportunity to improve gas detection by enhancing selectivity and sensitivity of cheap and popular gas sensors. The improvement at low gas concentrations can be even increased further by UV light irradiating the gas sensing layers exhibiting photocatalytic effect (e.g., WO3 or TiO2 gas sensing layers). A new system has been developed recently to...
The results of a study the energy spectrum of the electronic levels in DUWELL structure with 10 layers of quantum dots InAs designed to create a stripe laser at a wavelength of 1.3 microns by low-frequency noise spectroscopy and DLTS are presented. The activation energy 480 meV of the ground state of holes in a layer of quantum dots is determined from the temperature dependence of the power spectral...
The appearance of “cooling” phenomena in the noise temperature spectrum is presented. The results are obtained in the framework of two, hydrodynamic and Monte Carlo, models of carrier transport and related electronic noise description in the channels of FET and MOSFET structures. The cooling effect was obtained under excitation of 2D-plasma waves in the gated region of the channel due to streaming-plasma...
Noise properties of the thin films (Ge2Sb2Te5)1−xBix were investigated. Changing the amorphous film on the crystal structure was carried out by varying the voltage to 10 V on the resistor sample in the isothermal conditions at the constant temperature. The temperature varied from 290 to 420 K with 10 K increasing step. It has been shown that introduction of Bi influences the properties of the phase...
To evaluate long-range cross-correlated behavior observed in bivariate time series, detrended cross-correlation analysis (DCCA) was proposed. In the DCCA, trends embedded in each time series are eliminated via piecewise least-squares polynomial fitting in the same way as the detrended fluctuation analysis (DFA). In this paper, as an improved variant of DCCA, we propose a DCCA method using the Savitzky-Golay...
This paper brings a comparison of the traps identified in triple-gate FinFETS and Gate-All-Around (GAA) nanowire (NW) MOSFETs built with the same technological process. Traps have been identified using low frequency noise (LFN) spectroscopy, giving information on which process steps may be improved in order to build better devices.
Today, Internet of Things (IoT) is an important and very popular technical and research area, as IoT systems provide opportunity to continuously monitor our environment in a cost-effective way. One really important parameter is the quality of the air since it significantly influences comfort and health. Fluctuation Enhanced Sensing (FES) is a promising method to increase the selectivity and sensitivity...
Energy harvesting of ambient energy of different forms has attracted considerable attention of researchers from both theoretical and applied fields. Whereas a typical design of energy harvester is based on a resonant structure — a linear oscillator — aimed at a harmonic excitation, in practice the behaviour of a harvester deviates from linear, and ambient excitations have a much more complex structure...
Electromigration (EM) strongly decreases the reliability of micro-electronics interconnects and becomes more problematic as scaling continues. Remedial measures are required, but therefore EM mechanisms first have to be understood. The standard, accelerated EM test methods are time-consuming, destructive and provide only limited physical understanding. We demonstrate that low-frequency (LF) noise...
GaN-based nanoribbons (NRs) represent important structures because of their unique transport properties. They have high breakdown voltage and can be scaled down to nanosizes. We studied the transport and noise properties of NRs in a wide temperature range applying different external treatments: ultraviolet (UV) excitation and high voltage bias. Characteristic features in the form of bumps were revealed...
In this paper, we propose image segmentation by Suprathreshold Stochastic Resonance (SSR) after filtering with anisotropic diffusion (AD). AD, which is used to remove the noise and to preserve the significant detail of image like lines, edges etc. It is followed by SSR, which uses the noise for segmentation of the noisy and blurred color images having different brightness values. This algorithm has...
Junctionless p+-p-p+ silicon nanowire (NW) field-effect transistors with various geometries were fabricated. Noise measurements were performed for the samples with different widths and in different operation modes. Results demonstrate significant changes in noise and Hooge parameter when the NW geometry is changed. The dependences obtained can be explained by considering the different impacts of the...
A stochastic model based on the Monte Carlo technique able to reproduce the steady state and the action potential in neurons in terms of the probabilities for different ions to cross the cell membrane is presented. Gating channels for sodium and potassium cations and leakage channels are considered following the Hodgkin-Huxley equations. Ion shot noise, this is, the noise associated to the random...
To characterize long-range power-law correlations and fractal scaling behavior, detrending-operation-based analysis methods, such as the detrended fluctuation analysis (DFA) and the detrending moving average analysis (DMA), have become widely used. We here present a general framework to provide the mathematical foundations of such scaling analysis methods. Our ramework can provide the rigorous relation...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.