Kinetic equation for systems with resonant captures and scatterings

We study a Hamiltonian system of type describing a charged particle resonantinteraction with an electromagnetic wave. We consider an ensemble of particlesthat repeatedly pass through the resonance with the wave, and study evolutionof the distribution function due to multiple scatterings on the resonance andtrappings (captures) into the resonance. We derive the corresponding kineticequation. Particular cases of this problem has been studied in our recentpapers [1, 2].

HAADF HRSTEM of one dimensional CuI crystals inside SWCNT s

Structure characteristic of Ni‐poly‐p‐xylylene nanocomposites synthesized by VDP

Study the microstructure of three and four component phases in Al‐Ni‐Fe‐La alloys

3 D study of pore space morphology of the shales

Structure of filamentous alternanthera mosaic virus and mechanism of its activation

Electron microscopy of novel technical superconducting materials

Dynamic Behavior of Polydisperse Dust System in Cryogenic Gas Discharge Complex Plasmas

Complex (dusty) plasmas of micron‐sized CeO 2 polydisperse particles in dc glow discharges at 77 and ∼ 10 K were experimentally investigated. It was obtained that dust structure in cryogenic gas discharge plasma can be a mixture of two fractions (components) with completely different dust ordering and dynamics. We observed under some specific conditions that fast‐moving particles of one component diffuse through another component consisted of dust particles arranged in linear chains (strings). From experimental data analysis particle velocity distribution functions for each dust component were obtained. The possible nature of two‐component dust structure formation was discussed. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

Wide‐Range Tuning of the Mo Oxidation State in La1–xSrxFe2/3Mo1/3O3 Perovskites

La 1– x Sr x Fe 2/3 Mo 1/3 O 3 (0 ≤  x  ≤ 1) perovskites allow exceptionally wide tuning of the Mo oxidation state from +3 ( x = 0) to +6 ( x = 1) with the Fe III oxidation state virtually unchanged. The end members of this series show antiferromagnetic ordering in LaFe 2/3 Mo 1/3 O 3 at T N = 520 K and ferrimagnetic ordering in SrFe 2/3 Mo 1/3 O 3 at T C = 420 K. The crucial role of electron correlations in the Mo 4d shell suggests that LaFe 2/3 Mo 1/3 O 3 with a half‐filled band is a Mott insulator, whereas SrFe 2/3 Mo 1/3 O 3 is a band insulator. In both cases, the magnetic structure is dictated by antiferromagnetic superexchange between localized magnetic moments. At intermediate compositions, an interplay of antiferromagnetic‐superexchange and double‐exchange interactions results in nonmonotonous variations of both the magnetic‐ordering temperature and saturation magnetization.

Rhodium(III) Speciation in Concentrated Nitric Acid Solutions

The interaction of rhodium(III) aqua ions with nitrate ions in 3–16 m nitric acid solutions has been studied by 103 Rh and 15 N NMR and Raman spectroscopy. The mononuclear complexes [Rh(H 2 O) 6– n (NO 3 ) n ] 3– n ( n = 1–4) were found to be the only form of rhodium(III) existing in the solutions with the metal concentration in the range 0.2–1.3 m . The dynamics of the H 2 O → NO 3 – substitution process was studied at 80 °C. An increase in the average number of nitrate groups bonded to rhodium with increasing concentration of nitric acid was also determined. The fine crystalline salt Rb 4 trans ‐[Rh(H 2 O) 2 (NO 3 ) 4 ][Rh(NO 3 ) 6 ] was obtained by solvothermal concentration of the rhodium nitric acid solution on addition of rubidium nitrate. The structure of the salt was solved by the powder X‐ray diffraction method, with monodentate coordination of nitrato ligands found for both the [Rh(NO 3 ) 6 ] 3– and trans ‐[Rh(H 2 O) 2 (NO 3 ) 4 ] – anions.