Vol 45, No 4 (2018)

The inclined substrate deposition method is used to grow MgO layers applicable to set textures incorporated in high-temperature superconductor (HTSCs) tapes with high critical current density. The method makes it possible to obtain polycrystalline sublayers with pronounced textures independently of the substrate crystal structure. Simultaneously, MgO has good adhesion to substrates made of a wide spectrum of materials. This makes the method a universal means for growing texturing buffer layers incorporated in high-current HTSC tapes.

A configuration of the multichannel system for diagnostics of radiative processes in various regions of the discharge appearing in semiconductors in response to high-voltage pulses is considered. The system allows real-time recording of spectra, dynamics, and energy of radiation in nine emitting object zones 200–400 μm in diameter. The recording equipment is connected to objects under study by fiber-optic cables (FOCs). The system temporal resolution can be varied from 40 to 250 ps depending on the FOC diameter. An example of the simultaneous study of spatiotemporal characteristics of the streamer discharge at seven points of a CdS_xSe_1−x semiconductor wafer is given.

In gravitational scattering the quantum particle probes the Fourier-transforms of a metric. I evaluate the Fourier-transforms of Schwarzschildmetrics in standard, harmonic, and other coordinate systems in linear and G²-approximations. In general, different coordinate systems lead to different scattering. This opens up the possibility to choose the privileged coordinate system which should lead to scattering in agreement with experiment.

A performed analysis shows that the density functional theory for the inhomogeneous electron gas, which is based on the hypothesis of the existence of the density functional for the external field potential is incorrect. This means that the density functional theory is not an ab initio theory.