A5063855240- Chalcogenide Semiconductor Thin Films
- Chemical Thermodynamics and Molecular Structure
- Metal Extraction and Bioleaching
- Crystal Structures and Properties
- Metallurgical Processes and Thermodynamics
- nanoparticles nucleation surface interactions
- Thermal and Kinetic Analysis
- Minerals Flotation and Separation Techniques
- Intermetallics and Advanced Alloy Properties
- High-pressure geophysics and materials
- Advanced Thermoelectric Materials and Devices
- Thermodynamic and Structural Properties of Metals and Alloys
- Material Science and Thermodynamics
- Astro and Planetary Science
- Iron-based superconductors research
- Rare-earth and actinide compounds
- Geological and Geochemical Analysis
- Iron oxide chemistry and applications
- Molten salt chemistry and electrochemical processes
- Chemical and Physical Properties in Aqueous Solutions
- Solid-state spectroscopy and crystallography
- Mineralogy and Gemology Studies
- Metallurgical and Alloy Processes
- Radioactive element chemistry and processing
- X-ray Diffraction in Crystallography
Institute of Experimental Mineralogy
2010-2022
Dubna State University
2021-2022
Osipyan Institute of Solid State Physics RAS
2019
Russian Academy of Sciences
2002-2015
Lomonosov Moscow State University
2013
Institute of Problems of Chemical Physics
2003
The plate-like single crystals of tetragonal (P4/nmm) FeSe1−x superconductors were grown using the KCl–AlCl3 flux technique which produced crystalline samples about 4 × 0.1 mm3 dimensions. energy dispersive X-ray spectroscopy established a ratio Fe : Se = 1 0.96 ± 0.02. resistivity and magnetization measurements revealed sharp superconducting transition at Tc 9.4 K. Multiple Andreev reflections pointed to existence two-gap superconductivity with gap values ΔL 2.4 0.2 meV ΔS 0.75 4.2
The existence of the only ternary compound, Ag3AuSe2 (fischesserite), in Ag-Au-Se system was confirmed by solid-state annealing method. selenium analog petrovskaite (AgAuS) not observed under experimental conditions (in temperature range 350-773 K and own vapor pressure).
Thermodynamic properties of the following phase reactions in Ag-Au-S system have been investigated via electromotive force (EMF) measurements solid-state galvanic cells with Ag4RbI5 as a solid electrolyte:
Abstract Although Bi-Ag sulfides often occur in many types of hydrothermal Au-Ag ore deposits, their stability and phase relationships are insufficiently quantified. We employed the electromotive force (emf) method to measure thermodynamic properties pavonite (AgBi3S5) matildite (AgBiS2), which two main ternary mineral phases Ag-Bi-S system. These new results, coupled with a critical analysis literature data, allow generation consistent set values The recommended standard at 25°C 1 bar Gibbs...
An equilibrium mixture of monoclinic pyrrhotite and pyrite was synthesized in the eutectic AlCl3- KCl melt at 525 K. The reaction 7FeS2(cr) + 12Ag(cr) = 8Fe0.875S(cr) 6Ag2S(cr) studied by an electromotive force technique all-solid-state electrochemical cell with Ag+-conductive solid electrolyte Ar atmospheric pressure: (-) Pt | Ag AgI Ag2S, Fe0.875S, FeS2 (+). In 490-565 K temperature range a linear vs. trend obtained from which dependence sulfur fugacity determined for pyrrhotitepyrite...