Antimatter from the cosmological baryogenesis and the anisotropies and polarization of the CMB radiation

We discuss the hypotheses that cosmological baryon asymmetry and entropy were produced in the early Universe by phase transition of the scalar fields in the framework of spontaneous baryogenesis scenario. We show that annihilation of the matter-antimatter clouds during the cosmological hydrogen recombination could distort of the CMB anisotropies and polarization by delay of the recombination. After recombination the annihilation of the antibaryonic clouds (ABC) and baryonic matter can produce peak-like reionization at the high redshifts before formation of quasars and early galaxy formation. We discuss the constraints on the parameters of spontaneous baryogenesis scenario by the recent WMAP CMB anisotropy and polarization data and on possible manifestation of the antimatter clouds in the upcoming PLANCK data.Comment: PRD in press with minor change

ФОТОТОК В СТРУКТУРАХ КРЕМНИЙ/ТИТАНАТ СТРОНЦИЯ/НИКЕЛЬ

The SrTiO3 (strontium titanate xerogel) films were fabricated on the substrates of monocrystalline silicon using the sol-gel method at the annealing temperature 750 °С. The upper nickel electrodes were fabricated using the magnetron sputtering, and the volt-amperic characteristics of the obtained structures were measured. Photocurrent was observed from the structure silicon/strontium titanate/nickel under illumination with the halogen lamp, as well as switching from low resistance state to high resistance state under and without illumination.Золь-гель методом синтезированы пленки титаната стронция SrTiO3 (ксерогель титаната стронция) на подложках монокристаллического кремния при температуре термообработки 750 °С. Методом магнетронного распыления сформированы верхние электроды из никеля и измерены вольт-амперные характеристики сформированных структур. Обнаружен фототок при освещении структуры кремний/титанат стронция/никель галогенной лампой, а также переключение из низкоомного состояния в высокоомное при напряжении около 10 В как при освещении, так и без него

Photocurrent in the structures of silicon / strontium titanate / nickel

The SrTiO3 (strontium titanate xerogel) films were fabricated on the substrates of monocrystalline silicon using the sol-gel method at the annealing temperature 750 °С. The upper nickel electrodes were fabricated using the magnetron sputtering, and the volt-amperic characteristics of the obtained structures were measured. Photocurrent was observed from the structure silicon/strontium titanate/nickel under illumination with the halogen lamp, as well as switching from low resistance state to high resistance state under and without illumination

Optical characteristics of annealed barium titanate films formed by the sol-gel method

Методами спектрофотометрии и спектроэллипсометрии в области полос собственного поглощения исследованы золь-гель пленки титаната бария на кварцевых подложках, отожженные при температурах 450, 600 и 700 C. Оценены толщины пленок и переходных слоев на границах пленка-воздух и пленка-подложка. Установлено, что повышение температуры отжига приводит к уменьшению ширины запрещенной зоны материала, пористости и толщины пленок, а также к увеличению их показателей преломления и поглощения. Спектральные зависимости показателей преломления и поглощения пленок интерполированы новыми дисперсионными формулами для аморфных материалов. Using the methods of spectral ellipsometry and spectrophotometry in the region of intrinsic absorption bands of sol-gel barium titanate films on quartz substrates annealed at temperatures of 450, 600, and 700°C we determined the thicknesses of surface layers, films, and film-substrate transition layers. A decrease in the porosity, thickness, and band gap of the films as well as an increase in their refractive indices and absorption with an increase in the annealing temperature were established. The spectra of refractive indices and absorption are interpolated by the dispersion formulas of new amorphous materials