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[en] Investigation into electric conductivity, Hall coefficient, thermoelectromotive force α0 and magnetic thermoelectromotive force αB in specimen with x=0.14, in the 2-200 K temperature range and magnetic field in the 0-1.8 T range is conducted to determine peculiarities of thermoelectrical coefficient behaviour in p-CdxHg1-xTe crystals. The observed dependences, α0(T) and αB(T), are explained by conductivity mixed character and magnetic field strong effect
[en] This paper discusses the nature of the interaction and physicochemical properties of the alloys of the system SnTe-InSe. The DTA was performed on an NTR-74 pyrometer, XPA on a Dron-2.0 diffractometer and MSA on an MIM-7 metallographic microscope. The microhardness of the samples was determined on a PMT-3 microhardness tester. The congruently melting compound SnInTeSe and solid solutions based on the starting components are formed in the system
[en] Investigation results for thermal conductivity and thermo-emf of Cd3Hg1-xTe (x=0.05; 0.1; 0.14; 0.2) solid solutions within 2-100 K temperature range are presented. Maximum is detected for all specimens at 8 K at temperature dependence of thermal conductivity while decrease of curve inclination with increase of Cd content is determined. The observed effects are related to scattering of phonons at point defects and charge carriers
[en] Time sequence of Hα-spectra of chromospheric spicules has been studied. The radial, tangential and total velocities of 15 spicules at the height of 4O00 km have been determined. Spicule trajectories are obtained as projected on the photosphere. The spicules move along the cyclic trajectories similar to ellipses in the ideal case. Thus the oscillation of a spicule as a whole is ''elliptically polarized''
[en] Selenium crystallization mechanism under pressure at different temperatures and concentrations of tellurium is revealed. It is shown that crystallization process under pressure in Se-Te system under certain values of temperature and pressure is characterized by a high nucleation rate (the first stage) and by the presence of time interval (the 2nd stage) during which only the nucleus growth is observed. It is ascertained that the mechanism of growth at 403 K and 0.4 GPa does not depend on tellurium concentration of up to 20 at. %. At lower values of temperature and pressure the growth mechanism is changed
[en] Analysis of a time-lapse sequence of Hα spectrograms of chromospheric spicules has yielded radial, tangential, and total velocities for 15 spicules at the 4000-km level. In projection on the photosphere, spicules move along cyclic trajectories, ideally almost ellipses, so that a spicule vibrates as a whole as though it were elliptically ''polarized.''
[en] The effect of electron irradiation on the magnetic thermo e.m.f. and Nernst-Ettengshausen transverse effect in CdxHg1-xTe (x = 0; 1.12; 0.15) has been studied. In the temperature region with negative magnetic thermo e.m.f. [α(H)] the irradiation leads to a decrease in α(H), while in the region with positive α(H) to its increase. The irradiation is accompanied by an increase in the Nernst-Ettengshausen coefficient. The results confirm that under electron irradiation of the CdxHg1-xTe crystals donor-type radiation defects are formed. (author)
[en] The thermoelectric and galvanomagnetic properties of Cdsub(x)Hgsub(1-x)Te solid solution samples (x = 0.12; 0.15) irradiated at 300 K by electrons (3.5 MeV; by integrated fluxes up to 1.46 x 1018 e/cm2) have been investigated over a wide temperature range 4.2-300 K and in magnetic fields 0-22 kOe. It has been discovered that the electron irradiation of Cdsub(x)Hgsub(1-x)Te crystals leads to an increase of the Hall coefficient and a decrease of the thermo e.m.f. sign inversion temperature. The concentrations and mobilities of electron and hole have been calculated from galvanomagnetic data. It has been shown that the kinetic coefficient behavior upon irradiation is due to the Te vacancy-based radiation defect. (author)