Investigation of the turbulent mixing of thin layers of materials of different density during the laser acceleration of flat multilayer targets in the Iskra-4 facility

The results of the first experiments devised to investigate the mixing of thin layers of Al and Au during the laser acceleration of flat three-layer targets of Si (5 μm), Al (2 μm), and Au (0.05–0.26 μm) by radiation converted to the second harmonic from the Iskra-4 iodine laser with an intensity of 4×10¹³−7×10¹³ W/cm² (τ _0.5∼1 ns), which acts on the Si side of the target. A method for detecting the occurrence of mixing is developed. It is established that under the experimental conditions the thickness of the mixing region is at least ∼0.15 μm. The results of a theoretical analysis of the evolution of the disturbances leading to mixing are presented. Zh. éksp. Teor. Fiz. 111, 882–888 (March 1997) Deceased.     

Stationary Discharge Sustained by Electron Thermal Conduction for Emergence of a Magnetic Flux Through an Insulator Surface

This paper considers a stationary surface discharge that arises when a magnetic flux emerges through an insulator surface (H-pushed discharge). It is assumed that the heat flux in the discharge is determined only by the electron thermal conductivity of the ionized vapor of the insulator and the Nernst effect. The main parameters of the discharge and the structure of the current layer are determined for the case of strong magnetic fields (above 0.1 MOe) and an aluminum oxide insulator.     

Catalytic carbonylation of propylene with carbon monoxide under pressure in the presence of a palladium-zeolite catalyst

Conclusions Ultrahigh-silica zeolites containing palladium manifest a high activity and selectivity in the carbonylation of propylene.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 10, pp. 2304–2306, October, 1982.     

An equation of state of the Ising systems

In the framework of the spin operators diagram technique the method of taking into account the correlation effects in magnetic system based on the idea of $\text{1}\text{z}$ expansion (z is the number of the nearest neighbours) is proposed. An equation of state of 3-dimensional Ising systems with the arbitrary spin values S in the first order in $\text{1}\text{z}$ is presented which considerably improves the mean field theory (being the zeroth order approximation). For various lattices the calculated values of Tc coinside within 1% with the results of the high-temperature expansions.     

Analysis of the Operation of Thermonuclear Inverted-Corona Targets with an Ultrathin Working Layer at the Iskra-5 Laser Facility

Journal of Experimental and Theoretical Physics - We report on the results of experiments performed on the Iskra-5 laser facility for studying the effect of the polydeuteroethylene (CD2)n working...     

Ordering and domains in tetragonal crystals of Ising spins coupled via dipolar interactions

Dipolar coupling in the body-centered tetragonal crystal of Ising spins that is a prototype of the Mn₁₂Ac molecular magnet favors ferromagnetic ordering below the mean-field Curie temperature 0.71 K. With the help of Monte Carlo on crystals of up to one million Mn₁₂ molecules, it is shown that ordering occurs at 0.36 K in elongated crystals. The resulting state is split into ferromagnetic domains with domain walls preferring the diagonal orientation. Domain walls are pinned by the lattice at low temperatures. Making the crystal shorter makes domains finer and smoothens out the singularity at the ordering transition, decreasing the susceptibility in the domain state.