A5036249830- Magnetic and transport properties of perovskites and related materials
- Advanced Semiconductor Detectors and Materials
- Semiconductor Quantum Structures and Devices
- Chalcogenide Semiconductor Thin Films
- Advanced Thermoelectric Materials and Devices
- Phase-change materials and chalcogenides
- Solid-state spectroscopy and crystallography
- Rare-earth and actinide compounds
- Physics of Superconductivity and Magnetism
- Quantum and electron transport phenomena
- Magnetic properties of thin films
- Magnetic Properties of Alloys
- ZnO doping and properties
- Intermetallics and Advanced Alloy Properties
- Magnetic Properties and Applications
- Molecular Sensors and Ion Detection
- Advanced Condensed Matter Physics
- Cold Atom Physics and Bose-Einstein Condensates
- Supramolecular Chemistry and Complexes
- Heusler alloys: electronic and magnetic properties
- Characterization and Applications of Magnetic Nanoparticles
- Additive Manufacturing Materials and Processes
- Mass Spectrometry Techniques and Applications
- Innovation Diffusion and Forecasting
- Induction Heating and Inverter Technology
Lomonosov Moscow State University
2008-2023
Kurchatov Institute
2019-2021
Federal Medical-Biological Agency
2021
Institute of Biochemical Physics NM Emanuel
2021
ITMO University
2021
Rare earth metals (REM) occupy a special and important place in our lives. This became especially noticeable during the rapid development of industry industrial era twentieth century. The tendency rare-earth market certainly remains XXI According to experts estimates demand for chemical compounds based on them will tend grow nearest years until it reaches balance. At same time, practical use high-purity requires most accurate understanding physical properties metals, magnetic ones. Despite...
Nanoparticle (NP) assisted magnetic hyperthermia (NMH) is a clinically proven method for cancer treatment. High-Z NPs could also be perspective object combining with tumor radiosensitization. However, this application of little studied, and it unclear as to what particle compositions one can rely on. Therefore, the present work focuses on search materials that combine alternating field induced heating high atomic number related dose enhancement abilities. A theoretical evaluation 24...
Abstract The effect of ytterbium impurity on the magnetic and galvanomagnetic properties new diluted semiconductors Pb 1− x Sn Te:Yb was investigated. Impurity‐related Curie–Weiss paramagnetism revealed. concentration centers impurity‐band occupancy as a function content were determined. results are discussed assuming formation ytterbium‐induced level under valence‐band top variation due to changing mutual arrangement valence band, Fermi‐level position. (© 2004 WILEY‐VCH Verlag GmbH &...
We study the galvanomagnetic properties in weak magnetic fields (4.2 ≤ T 300 K, B 0.07 T) and Shubnikov-de Haas effect (T = 4.2 7 single crystal Pb1−x−ySnxVyTe alloys under variation of alloy composition (x 0.05–0.20, y 0.01) hydrostatic compression up to 15 kbar. The increase vanadium impurity content leads p-n-conversion a transition insulating phase due pinning Fermi level by donor-type deep situated bottom conduction band. found that pressure induces decrease activation energy level,...
Abstract The galvanomagnetic properties of Pb 1– x – y Ge Cr Te in the temperature range 4.2–300 K under variation alloy composition ( ≤ 0.13, 0.05) and hydrostatic compression P 17 kbar) have been investigated. Pressure dependences electron concentration Fermi energy were obtained. In frame Kane dispersion relation theoretical calculated parameters chromium impurity band estimated. Magnetic field Hall coefficient germanium content pressure measured. It is shown, that existence two...
A study of phase and elemental compositions, galvanomagnetic properties (4.2 K ≤ T 300 K, B 0.07 T) Shubnikov – de Haas oscillations (T = 4.2 6.5 in Pb1–x–ySnxFeyTe alloys with varying concentrations tin iron single-crystal ingots synthesized using the Bridgman-Stockbarger method was performed. Scanning electron microscopy X-ray fluorescence microanalysis revealed presence enriched microscopic inclusions, distribution along determined. An increase concentration holes increasing iron, as well...
Abstract Galvanomagnetic and photoelectric properties of the Pb 1− y Sn Te (0 ≤ 0.06) x Ge (0.04 0.08) single crystals doped with gallium ( C Ga = 0.3–3 mol%) have been investigated. Low‐temperature activation ranges impurity conductivity on dark curves resistivity ρ (1/ T ) Hall coefficient R H were revealed attributed to appearance gallium‐induced deep levels in gap alloys. It was shown that alloys possess high infrared photosensitivity at temperatures below c 50–60 K. The results are...
Magnetic and galvanomagnetic properties of Pb1-x-yGexCryTe (x=0.02-0.20, y=0.01-0.08) solid solutions have been investigated. It was found that the magnetic susceptibility these alloys contains two contributions: a paramagnetic Curie-Weiss share (T<50 K) due to paramagnetism Cr3+ ions high temperature ferromagnetic (T<300 K). Dependence concentration centers on composition matrix obtained. The field dependences Hall coefficient in vicinity metal-insulator transition were measured main...
The galvanomagnetic effects in new diluted magnetic semiconductors PbSnxTe:Yb were studied to build the energy level diagram under variation of alloy composition and establish connection between parameters electronic structure properties. It was found that Hall coefficient increases almost by order magnitude with increasing temperature. As tin content decreases, while ytterbium concentration grows, hole decreases several times. results are explained assuming a formation an ytterbium-induced...
We study the structure, composition and galvanomagnetic properties (4.2≤T≤300 K,B≤0.07 T) of single crystal Pb1‐x‐ySnxVyTe, Pb1‐yTiyTe Pb1‐yScyTe under variation alloy (x≤0.20,y≤0.025). An increase impurity content leads to a change in free carrier concentration due pinning Fermi level by donor deep levels. The energetic position these levels investigated alloys is estimated.
The effect of high hydrostatic pressure (up to 18 kbar) on the galvanomagnetic properties n- and p-Pb1-xSnxSe (x<or=0.06) alloys irradiated with electrons (T approximately=300 K, E=6 MeV, Phi <or=7*1017 cm-2) has been investigated. It is shown that irradiation creates a band localized states Et1 energy position which relative valance top L6+ depends alloy composition pressure. A model spectrum electron-irradiated Pb1-xSnxSe proposed assuming electron generates two different types defects...
The galvanomagnetic effects in the n-Pb1-xGexTe (x=0.02-0.13) alloys, doped with chromium, at temperatures range of 4.2≤T≤300 K and under hydrostatic compression up to 17 kbar have been investigated. insulator-metal transition, induced by pressure Pb1-xGexTe: Cr (x=0.10) alloy, was revealed. Using experimental data frame two-band Kane dispersion relation dependences electron concentration Fermi energy were calculated. coefficient chromium deep level obtained diagram electronic structure...
The effect of pressure on the galvanomagnetic properties electron-irradiated n-Pb1-xSnxSe (0.07<or=x<or=0.125) has been investigated. electron concentration as a function is used to determine parameters band radiation-induced resonant states and reconstruct energy spectrum Pb1-xSnxSe alloys irradiated with electrons.