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In this review some gigantic effects, discovered not long ago and very important for application in electronics, are characterized. These descriptions are taken from our recently published textbooks: they cover field of electronic materials science and intended for students, specializing in electronics. These textbooks are based on authors' many years experience in lecturing in field of materials...
Electronic sensors and controlling devices widely use specific materials, in which electrical resistance can be changed many times under the influence of external factors: temperature, pressure, electrical field, moisture and even smell. In the report, a principal mechanism is examined: how electrical polarization can affect the conductivity in different crystals. Understanding of physical nature...
Ferromagnetic nanoscale Co particles in a nonferromagnetic matrix can be used as materials for spintronics and a magnetoelectronics engineering. Highly dispersive Co particles were produced by spark erosion method in distilled water, ethanol and toluene. The phase composition, crystalline structure and magnetic properties were studied. The analysis of the phase composition of spark eroded powders...
High dielectric constant microwave dielectrics are basic materials for dielectric resonators, filters, microwave substrates, etc. These dielectrics can be improved through understanding of their polarization physical nature. High value of permittivity with small dielectric losses in frequency range of 1…100 GHz can be realized only due to quick-response mechanisms of polarization. In the report, firstly,...
The nonlinear properties in THz range of 3D electron gas in narrow-gap n-InSb semiconductor and 2D one in graphene are investigated theoretically. The nonlinear dependencies of the density of electric current on the applied electric field have been computed from the kinetic approach under finite temperatures. A comparison has been done with the analytic dependencies obtained when an influence of the...
Surface photovoltage (SPV) method was used to evaluate the silicon-sapphire interface potential barrier of silicon on sapphire (SOS) wafers obtained by CVD technique. The method provides monitoring of silicon-sapphire interface quality. Fabrication process parameters which influence on SPV signal were found. Silicon deposition temperature has a great importance on SPV signal. It was found that SPV...
This paper presents a description of the method of automated parametric and structural optimization of systems for ensuring thermal regime of microelectronic devices using modern information technologies.
Modeling of the shielding effectiveness of the perforated film electromagnetic screens, depending on their design parameters, was conducted. Samples of the electromagnetic screens based on the perforated metal or metal-dielectric coatings were manufactured. A comprehensive experimental study of the test samples was conducted. The comparative analysis of the experimental and theoretical investigations...
For critical aerospace applications that experience a high intensity of single event upsets, the cache of a processor has to be protected against soft errors. This poses a challenge for cache design, since implemented redundancy causes timing and performance degradation of a processor. Sound design decisions should be made based on evaluations at every design stage. In this paper we present a platform-oriented...
Solid state magnetic field sensors are examined. The use of III-V semiconductors in Hall effect sensors results in high bandwidth, fast response time, adequate spatiotemporal resolution, accuracy and sufficient measurement range. Despite significant advantages, there are drawbacks, such as noise, errors, nonlinearity, sensitivity, low thermal stability, etc. Noise attenuation and error reduction problems...
This paper provides fundamental and engineering design principals of integrated microthrusters and microthruster arrays. The microsystems fabrication, synthesis of nanoenergetic propellants, system integration and other problems are addressed and solved. The motion and solid-state sensors can be integrated to measure physical quantities. Sensor data fusion, data acquisition, logics, control and other...
Nanopowder La0.6Sr0.3Mn1.1O3−δ compacts by the oxide-salt, co-precipitation and atomization hydrolysis technologies have been obtained. Structure and its defects, average particle size and functional properties of the nanopowder compacts by X-ray diffraction, thermogravimetric, resistance, magnetic, 55Mn NMR, magnetoresistance and BET methods have been investigated. Connections between the dispersion...
The proposed MEMS-technology viscosity sensor solves two major drawbacks associated with current state of the art MEMS viscosity sensors, such as: (1) Functional complexity and integration of external components for actuation and subsequent data acquisition; (2) Fabrication incompatibilities with CMOS processes. The proposed solution is based on thermally induced actuation, subsequent vibrations of...
Absorption of thin films with gold, silver and copper spheroidal nanoinclusions was calculated. The dependences of the absorption spectra on the volume fraction, the shape of inclusions and their orientation were analyzed by means of contour maps. The incident monochromatic beams of light are normal to the film surface. The range of the parameters obtained for morphology of the film under study can...
RNA macromolecular structures are very important in the currently boosting field of bionanotechnology, including a range of biomedical applications. In order to expand the applications of these RNA nanoclusters obtained from the self assembly of the ribonucleic acid (RNA) building blocks, it is critical to be able to better understand and predict their properties. Therefore, we model the RNA nanotubes...
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