Conveners
X-ray spectroscopy: Oral 4
- Rishat Valeev (Physical-Technical Institute of UB RAS)
- Vladimir Kriventsov ()
X-ray spectroscopy: Oral 5
- Rishat Valeev (Physical-Technical Institute of UB RAS)
- Vladimir Kriventsov ()
This work shows the results of the study of trial test samples of technological and natural origin, and using a complex composition for the development of combined methods based on synchrotron radiation (SR), such as μ-XANES/EXAFS, μ-XRF, and others. Main goal of the study is to adapt the developed integrated approach for the study of micro-inclusions and microparticles by SR methods in the...
A line of polymethylmethacrylate (PMMA) samples was synthesized using synchrotron radiation of the VEPP-3 accelerator and the high-energy electron beam of the ILU-6 accelerator. The study was carried out during the in situ synthesis of PMMA in the recording of luminescence spectra and their kinetics. An experimental study was also made of the luminescence of PMMA samples with a molecular...
The solid solution based on the copper chromium disulfide CuCrS2 are promising functional materials for modern electronics applications. These compounds exhibit the potential properties for practical usage: the thermoelectric properties [1], the ionic conductivity [2], the helimagnetic arrangement [3-4], the colossal magnetoresistance and the phase metal-insulator transition [4].
There are...
In this work, we have studied the structural anisotropy of polyaniline and polypyrrole films depending on the type of conductive carbon substrates, including highly oriented pyrolytic graphite (HOPG) and vitreous carbon being a fullerene-like material in its structure. The NEXAFS spectra were measured at both carbon and nitrogen K absorption edges. To analyze the chemical structure of the...
An important task of studying the properties of modern materials is to study the surface, including determining the atomic and electronic structure of solid. A special place is occupied by 2D materials where the surface structure determines the properties of the material, such as topological insulators and other low-dimensional systems. Topological insulators, because of the special properties...
Лабораторией квантовой химии НИЦ «Курчатовский институт» - ПИЯФ (http://qchem.pnpi.spb.ru) разработан комбинированный подход на основе потенциала встраивания кластера в кристалл (который мы назвали «настраиваемым под соединение» потенциалом внедрения, НСПВ, или compound-tunable embedding potential, CTEP) [1-3] для исследования различных свойств материалов (периодических структур, структур с...
Angle-resolved photoemission spectroscopy (ARPES) has proven to be particularly successful for the investigation of the electronic structure of solids and their surfaces. A synchrotron radiation beamline in a vacuum ultraviolet (VUV) to soft x-ray photon energy range of 18-240 eV and a photon flux up to 2·10^13 ph/s have been constructed at the 3 GeV Diamond Light Source storage ring. The...
During last decade materials science developing the methods of obtaining and studying of new materials for magnetic and catalytic aplications based on nanostructured thin films and nanostructures of different metals [1,2]. Nickel due to there high magnetic and cathodic properties has technological and scientific interest. It should be noted that the magnetic and catalytic properties depend on...
LUMINESCENT SPECTROSCOPY OF Pr${}^{3+}$ IONS IN SOME PHOSPHATES, BORATES AND SILICATES USING X-RAY SYNCHROTRON RADIATION FROM VEPP-3 STORAGE RING
Kiselev S.A.${}^{1,\ a)}$, Pustovarov V.A.${}^{1,\ b)}$ and Bettinelli M.${}^{2,\ c}$${}^{)}$
${}^{1}$Institute of Physics and Technology, Ural Federal University, 19 Mira st., Ekaterinburg, 620002, Russia
${}^{2\ }$Laboratory of Luminescent...
Tasks arising with the growing need for alternative renewable energy sources and environmentally pure catalytic technologies stimulate the search for new functional materials. At present, growing interest is in compounds containing chalcogenide and dichalcogenide groups, which may perform as active catalytic centers. In this regard, binuclear and trinuclear transition metal clusters modified...
Fluorinated graphite (FG) attracts the attention of researchers due to a wide range of physicochemical properties, which is promising for its use as an element base of microelectronic devices (LED elements, gas sensors, etc.), and also as a cathode for lithium-ion batteries. More importantly, recent studies have shown that intercalated systems based on graphite and its derivatives can be used...
