A5055018502- Magnetic and transport properties of perovskites and related materials
- Multiferroics and related materials
- Advanced Condensed Matter Physics
- Magnetic Properties of Alloys
- Rare-earth and actinide compounds
- Shape Memory Alloy Transformations
- Ferroelectric and Piezoelectric Materials
- Magnetic Properties and Applications
- Solidification and crystal growth phenomena
- Material Science and Thermodynamics
- Crystal Structures and Properties
- Magnetic Properties and Synthesis of Ferrites
- Magnetic properties of thin films
- Physics of Superconductivity and Magnetism
- Geomagnetism and Paleomagnetism Studies
- High-pressure geophysics and materials
- Geochemistry and Geochronology of Asian Mineral Deposits
- Nanoparticle-Based Drug Delivery
- Theoretical and Computational Physics
- Characterization and Applications of Magnetic Nanoparticles
- Electromagnetic wave absorption materials
- Mineralogy and Gemology Studies
Lomonosov Moscow State University
2004-2023
Institute of Physics. HI Amirkhanova
2012-2023
Moscow State University
2008-2023
Kurchatov Institute
2012
Moscow Power Engineering Institute
2000
Prokhorov General Physics Institute
2000
The magnetic, electric, magnetoelectric, and magnetoelastic properties of rare-earth ferroborates RFe3(BO3)4 (R=Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er) as well yttrium ferroborate YFe3(BO3)4 have been studied comprehensively. A strong dependence not only the magnetic but also magnetoelectric on type ion, specifically, its anisotropy, which determines structure large contribution to electric polarization, has found. This is manifested in temperature polarization below Néel point TN specific field...
It is shown that the use of sandwich from materials with near similar magnetocaloric properties increases relative cooling power by about 20 %.
Abstract A tendency to form multiferroic states with a spatially modulated antiferromagnetic structure and electric polarization in pure orthorhombic manganites RMnO 3 upon decreasing of the rare‐earth ionic radii has been realized single crystals substituted compounds Eu 1– x Y MnO (0.2 ≤ 0.5) Gd y (0 0.2). While parent slightly ( 0.1) exhibited spontaneous transition from incommensurate (IC) canted (CAF) state at T CA < N = 45–50 K, transitions IC commensurate ferroelectric (C/FE) phase...
In this report, were studied the heating capability of magnetic nanoparticles (MNps) made from Zn-substituted manganese ferrite compounds Zn x Mn 1-x Fe 2 O 4 with content varying 0% to 90%. The MNps diameter 5-25 nm synthesized by co-precipitation metal salt solution NaOH solution. It was shown, that specific absorption rate (SAR) for compound 20% is bigger than other ones exhibited 1.5 W/g. Also SAR liquids shows values, which indicates Brown relaxation mechanism in system.
Heating of the magnetic nanoparticles in AC field is effect promising for application medicine. The mechanisms heating AC-magnetic implies nontrivial dependence power dissipated by on frequency. With use a reconfigurable experimental setup, this frequency-dependent was measured two characteristic examples: magnetite conventionally used medicine and polymer coating with micrometer sized particles. saturation frequency shown that more pronounced second case microparticles.
Experimental studies of the lattice parameters, thermal expansion, and elastic characteristics in range structural phase transition YBaCo4-yZnyO7+x series cobaltites with diamagnetic dilution cobalt subsystem have been carried out. It has found that for stoichiometric samples annealed vacuum, parameter Delta a/a shows no features during transition, while parameters b/b c/c experience similar jumps different signs. This leads to a jump anisotropic (rhombic) ε0~-4·10^-3 isotropic (volume...