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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...
Numerical methods for microscopic modeling of electronic fluctuations are considered. A deterministic Boltzmann-Langevin method for simulation of the long-lasting correlations is proposed for a coupled hot-electron-hot-phonon gas in a polar semiconductor. The effects of the nonequilibrium phonons and the Pauli exclusion principle on spectra of the hot-electron noise temperature are demonstrated.
High frequency noise was measured for epitaxial graphene on SiC. The noise measurements were carried out in the frequency range from 200 MHz up to 10 GHz in the direction parallel to the applied electric field in the graphene layer. Nanosecond voltage pulses were applied to minimize the effect of graphene layer self-heating. The measured spectral density of current fluctuations within 200 MHz–2.5...
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