A5019771410- Shape Memory Alloy Transformations
- Magnetic and transport properties of perovskites and related materials
- Heusler alloys: electronic and magnetic properties
- Magnetic Properties of Alloys
- Magnetic Properties and Applications
- Thermal Expansion and Ionic Conductivity
- Ferroelectric and Piezoelectric Materials
- Multiferroics and related materials
- Rare-earth and actinide compounds
- Transition Metal Oxide Nanomaterials
- Advanced Condensed Matter Physics
- Magnetic properties of thin films
- High Entropy Alloys Studies
- Electronic and Structural Properties of Oxides
- Intermetallics and Advanced Alloy Properties
- Piezoelectric Actuators and Control
- Magneto-Optical Properties and Applications
- Advanced Thermoelectric Materials and Devices
- Advanced Welding Techniques Analysis
- Phase-change materials and chalcogenides
- Gas Sensing Nanomaterials and Sensors
- Material Properties and Applications
- Magnetic and Electromagnetic Effects
- Microwave Dielectric Ceramics Synthesis
- Luminescence Properties of Advanced Materials
Institute of Radio-Engineering and Electronics
2016-2025
Moscow State University
2023
Lomonosov Moscow State University
2023
Immanuel Kant Baltic Federal University
2020
Helmholtz-Zentrum Dresden-Rossendorf
2020
Institute of Physics. HI Amirkhanova
2020
University of Parma
2020
ITMO University
2018
International Laboratory of High Magnetic Fields and Low Temperatures
2014-2017
Development Agency of Serbia
2013-2016
The magnetocaloric effect (MCE) in an Fe48Rh52 alloy and Sm0.6Sr0.4MnO3 manganite was studied cyclic magnetic fields. adiabatic temperature change the for a field (ΔB) of 8 T frequency (f) 0.13 Hz reaches highest value (ΔTad) −20.2 K at 298 K. magnitude MCE ΔTad = 6.1 same 143 regions, where strong is exhibited alternating field, are bounded both compounds. In case alloy, range this phenomenon above by ferromagnetic to antiferromagnetic transition zero condition during cooling. manganite,...
Measurements of the adiabatic temperature change (ΔT) and specific heat transfer (ΔQ) Ni2.18Mn0.82Ga Heusler alloy were taken in order to quantify direct giant magnetocaloric effect when it is vicinity magneto-structural phase transition (PT) from paramagnetic austenite ferromagnetic martensite, their results are presented. A new vacuum calorimeter was used simultaneously measure ΔT ΔQ materials with a Bitter coil magnet fields up H = 140 kOe. Other thermomagnetic properties this...
A model of a “smart” composite based on thermosensitive PNIPAM polymer deposited FeRh substrate with modified periodic microstructure was proposed. The initial parameters the were determined from properties actual sample and its components. Cooling using magnetic field shown by two independent methods, at ~37 °C, it −5.5 °C when 1.8 T applied. Based experimental data, models traditional PNIPAM/FeRh composites constructed. Calculations show that surface modification allows for an increase in...
Bimetallic composite nanotweezers based on Ti2NiCu alloy with shape memory effect (SME) have recently demonstrated the ability to manipulate real nano-objects, such as nanotubes, and bionanoparticles when heated 40-60 C by laser radiation. The possibility of developing operating at constant temperature is particular importance mainly for manipulation biological objects. In this work, a microactuator was produced using bilayer made layer rapidly quenched Ni53Mn24Ga23 ferromagnetic Heusler an...
High cooling power of magnetocaloric refrigeration can be achieved only at large amounts heat, which transferred in one cycle from cold end hot quasi-isothermal conditions. The simple and robust experimental method direct measuring the heat materials with effect (MCE) thermal contact massive copper block definite capacity regime was proposed. vacuum calorimeter for specific ΔQ adiabatic temperature change ΔT measurements MCE fields Bitter coil magnet up to H = 140 kOe designed tested on...
Direct studies of the adiabatic temperature change (ΔTad) in Ni47Mn40Sn12.5Cu0.5 Heusler alloy steady magnetic fields up to 8 T by extraction method and pulsed 50 were carried out this paper. The demonstrates a magnetostructural phase transition (MSPT) first order 254–283 K range as well second near Curie TC = 313 K. An inverse magnetocaloric effect (MCE) was found region MSPT, it reaches maximum value ΔTad −12 20 at initial T0 275 irreversible part MCE reached ΔTir −10 when field is...
The effect of a high magnetic field up to 12 T and hydrostatic pressure kbar on the stability metamagnetic isostructural phase transition multicaloric Fe49Rh51 alloy has been studied. temperature shifts under with rates dTm/μ0dH = −9.2 K/T dTm/dP 3.4 K/kbar, respectively. magnetocaloric (under two external fields) effects were studied via indirect method using Maxwell relations. maximum entropy change is increasing toward region from ∆S~2.5 J/(kg K) at 305 K ∆S~2.7 344 simultaneously applied...
An experimental method is suggested for the determination of rate magnetic phase transitions. The based on measurement change susceptibility a ferromagnetic sample in vicinity transition response to an abrupt temperature. This paper describes thin gadolinium plates, cooled by water-flow at temperature below Curie point (T C =292 K). It was found that relaxation time range from 289.9 291.3 K can be approximated using Landau-Khalatnikov equation with kinetic coefficient value γ = 3.9×10 -8 cm...
The magnetocaloric effect in the Fe49Rh51 alloy was systematically studied using three different approaches: in-field differential scanning calorimetry, standard direct measurement of adiabatic temperature change, and a non-contact method based on thermo-optical phenomenon, mirage effect, which able to directly test response induced by fast magnetic field variation. metamagnetic phase transition range 290–330 K at fields up 1.8 T through calorimetric measurements. estimated parameters were...
The field dependence of the magnetocaloric effect (MCE) in Mn <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1.22</sub> Fe xmlns:xlink="http://www.w3.org/1999/xlink">0.73</sub> P xmlns:xlink="http://www.w3.org/1999/xlink">0.47</sub> Si xmlns:xlink="http://www.w3.org/1999/xlink">0.53</sub> is studied terms entropy change ( <inline-formula xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\Delta S$...
High cooling power of magnetocaloric refrigeration can be achieved only at large amounts heat, which transferred in one cycle from cold end to hot quasi-isothermal conditions. The simple experimental method for direct measurement the heat material with effect (MCE) massive nonmagnetic block conditions was proposed. vacuum calorimeter designed simultaneous measurements MCE both adiabatic (∆T) and (∆Q) magnetic fields Bitter coil magnet. This tested on samples pure polycrystalline Gd MCE....
This paper is devoted to the study of magnetocaloric effect (MCE) in Ni-Mn-In-Co Heusler alloys by direct methods high magnetic fields. demonstrate inverse MCE magnetostructural transition area. The adiabatic temperature change value (ΔT <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">ad</sub> ) determined extraction method fields up 10 T. It shown that ΔT increases with decrease difference between and Curie point temperatures compounds. amount...
In this paper, we focus on understanding the magnetic field and temperature dependences of heat capacity CP, electrical resistivity ρ, magnetocaloric effect ΔTad in Fe48Rh52 alloy near room temperatures. The phase diagram is constructed according to CP(H, T) ρ(H, data, shift critical found be 9.6 K/T. experimental results do not confirm existing assumption about electronic nature antiferromagnet–ferromagnet transition FeRh alloy. An increase resistance through ferromagnetic–antiferromagnetic...
Magnetic cooling is a green technology, which more energy efficient than existing fluid-compression machines. Ni41Mn39In12Co8 alloy, demonstrates promising magnetocaloric performances, was investigated using neutron diffraction and thermomagnetic measurements. The austenite structure cubic L21 while that of the martensite mix 8 6 M modulated monoclinic structures austenitic site occupancy refinements reveal all substituting Co atoms occupy Ni-sites. Most Mn (65%) are in Mn-sites rest go to...