A5069096153- Magnetic properties of thin films
- Characterization and Applications of Magnetic Nanoparticles
- Crystallography and Radiation Phenomena
- Iron oxide chemistry and applications
- Theoretical and Computational Physics
- X-ray Diffraction in Crystallography
- Magnetic Properties and Applications
- Semiconductor Quantum Structures and Devices
- Geomagnetism and Paleomagnetism Studies
- Physics of Superconductivity and Magnetism
- Nanoparticle-Based Drug Delivery
- Crystallization and Solubility Studies
- Magnetic Properties and Synthesis of Ferrites
- Semiconductor materials and interfaces
- Magnetic and Electromagnetic Effects
- Rare-earth and actinide compounds
- Metallic Glasses and Amorphous Alloys
- Surface and Thin Film Phenomena
- Advanced NMR Techniques and Applications
- Electron and X-Ray Spectroscopy Techniques
- ZnO doping and properties
- Advanced X-ray Imaging Techniques
- Magnetic Properties of Alloys
- Advanced Electron Microscopy Techniques and Applications
- Anodic Oxide Films and Nanostructures
Institute of Physics and Technology
2013-2023
Moscow Institute of Physics and Technology
2014-2023
Institute of Physics and Technology
2003-2023
Russian Academy of Sciences
2009-2018
Kurchatov Institute
1997-2018
A.V. Shubnikov Institute of Crystallography
2018
National Research Centre
2012
Prokhorov General Physics Institute
2010
Institute of Bioorganic Chemistry
2010
Bauman Moscow State Technical University
2008
We present a way to analyze the chemical composition of periodical multilayer structures using simultaneous analysis grazing incidence hard X-Ray reflectivity (GIXR) and normal extreme ultraviolet reflectance (EUVR).This allows combine high sensitivity GIXR data layer interface thicknesses with EUVR densities atomic compositions.This method was applied reconstruction layered structure LaN/B mirror 3.5 nm periodicity.We have compared profiles obtained by GIXR-only analysis, both reconstructed...
A multi-level stochastic model taking into account the magnetic anisotropy, precession and diffusion of uniform magnetization single-domain particles is developed in order to describe Mössbauer absorption spectra an ensemble nanoparticles presence quadrupolar hyperfine interaction with arbitrary orientation its principal axes. This allows one take physical mechanisms for forming structure a real situation can be easily realized even on personal computer. In particular, now numerically...
This paper deals with the extension of well known Stoner–Wohlfarth (SW) model widely used to compare magnetic properties real single-domain particle systems its ideal predictions. The is often discussed in connection nanomagnetism. this successful SW gained by combining it Néel's ideas concerning dynamical behavior and relaxation magnetization such systems. We present derivation a universal equation which holds for populations energy levels defined model. By solving differential properly...
A three-level stochastic model taking into account the magnetic anisotropy, precession and diffusion of uniform magnetization single-domain particles is developed in order to describe Mössbauer absorption spectra an ensemble nanoparticles a weak field. In contrast conventional approaches searching for distribution hyperfine field at nuclei, this allows one take consideration physical mechanisms formation structure within dynamics inherent such materials. number qualitative effects observed...
The structural and transport properties of GaAs/Mn/GaAs/InxGa1−xAs/GaAs quantum wells (x≈0.2) with Mn δ-layer (4–10 at. %), separated from the well by a GaAs spacer, have been studied. hole mobility in investigated structures has exceeded values known for magnetic III-V heterostructures two orders magnitude. For conductivity metal type, we succeeded to observe at low temperatures Shubnikov–de Haas oscillations just confirming dimensionality (2D) energy spectrum. Exactly those 2D holes...
The potential of Mössbauer spectroscopy to study the biodegradation process magnetic nanoparticles in vivo was demonstrated. Magnetic form ferrofluid were administrated mice. mice liver samples has shown that addition sextet lines related injected there appears an intense doublet spectra with increasing times after particles administration. Further analysis showed consists two components formation iron-containing proteins and superparamagnetic behavior nanoparticles. Using combined three...
Nanosystems for targeted delivery and remote-controlled release of therapeutic agents has become a top priority in pharmaceutical science drug development recent decades. Application low frequency magnetic field (LFMF) as an external stimulus opens up opportunities to trigger the encapsulated bioactive substances with high locality penetration ability without heating biological tissue vivo. Therefore, novel microencapsulated formulations sensitive LFMF is paramount importance. Here, we...
We report results of investigations the structural and transport properties GaAs/Ga1−xInxAs/GaAs quantum wells (QWs) having a 0.5–1.8 monolayer (ML) thick Mn layer, separated from QW by 3 nm spacer. The structure has hole mobility about 2000 cm2 (V s)−1, being several orders magnitude higher than in known ferromagnetic two-dimensional (2D) structures. analysis electro-physical these systems is based on detailed study their means high-resolution x-ray diffractometry glancing-incidence...
Magnetic nanoparticles belong to the most promising nanosized objects for biomedical applications. However, little is known about clearance of magnetic from organism. In this work superparamagnetic iron oxide particles fluidMAG‐ARA were injected into tail vein mice at a dose 17 mg per 20 g body weight. At various time intervals after injection sacrificed and their organs collected. A Mössbauer study allowed detect in liver spleen showed degradation with incorporation exogenous paramagnetic...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Mikhail A. Chuev, Valery M. Cherepanov, Sergey Deyev, Iliya N. Mischenko, Maxim P. Nikitin, Polikarpov, Vladislav Y. Panchenko; Interpretation of the Mössbauer Spectra Magnetic Nanoparticles in Mouse Spleen. AIP Conf. Proc. 2 December 2010; 1311 (1): 322–328. https://doi.org/10.1063/1.3530033 Download citation...
X-ray reciprocal space mapping was used for quantitative investigation of porous layers in indium phosphide. A new theoretical model the frame statistical dynamical theory cylindrical pores developed and applied numerical data evaluation. The analysis maps provided comprehensive information on a wide range layer parameters, example, thickness porosity, orientation, correlation length segmented pore structures. results are good agreement with scanning electron microscopy data.
In this work, we used Mössbauer spectroscopy as a new approach for experimental quantification of the self-diffusion coefficient (DMössbauer) and hydrodynamic (HD) size iron-containing nanoparticles (NPs) in complex crowded solutions, mimicking cell cytoplasm. As probe, 9 nm cobalt ferrite NPs (CFNs) dispersed solutions bovine serum albumin (BSA) with volume fraction (φBSA) 0–0.2. Our results show that broadening spectra is highly sensitive to diffusion CFNs, while when φBSA = 0.2,...