A5077332960- Magnetic and transport properties of perovskites and related materials
- Shape Memory Alloy Transformations
- Magnetic Properties of Alloys
- Rare-earth and actinide compounds
- Magnetic Properties and Applications
- Heusler alloys: electronic and magnetic properties
- Advanced Condensed Matter Physics
- Thermal Expansion and Ionic Conductivity
- Magnetic properties of thin films
- Multiferroics and related materials
- Ferroelectric and Piezoelectric Materials
- Hydrogen Storage and Materials
- Metallurgical and Alloy Processes
- Physics of Superconductivity and Magnetism
- Inorganic Chemistry and Materials
- Geomagnetism and Paleomagnetism Studies
- Metallic Glasses and Amorphous Alloys
- Magnesium Oxide Properties and Applications
- High Entropy Alloys Studies
- Electronic and Structural Properties of Oxides
- Elasticity and Wave Propagation
- Transition Metal Oxide Nanomaterials
- High-pressure geophysics and materials
- Aeroelasticity and Vibration Control
- Magnetic confinement fusion research
Polish Academy of Sciences
2016-2024
Włodzimierz Trzebiatowski Institute of Low Temperature and Structure Research
2017-2024
Institute of Radio-Engineering and Electronics
2018-2024
Dagestan Scientific Center of the Russian Academy of Sciences
2024
Institute of Physics
2024
Indian Institute of Technology Madras
2020
Baikov Institute of Metallurgy and Materials Science
2019-2020
South Ural State University
2020
Lomonosov Moscow State University
2020
Yandex (Russia)
2019
We have investigated the anisotropy of magnetocaloric effect in a ${\mathrm{NdCo}}_{5}$ single crystal wide range temperatures, including spin-reorientation temperature region. In field ${\ensuremath{\mu}}_{0}H=1.3\text{ }\text{ }\mathrm{T}$ region 250--310 K, we discovered giant rotating $\ensuremath{\sim}1.6\text{ }\mathrm{K}$, caused by rotation magnetization vector. The calculations for been carried out.
The Δ T ad values are high and reach their maximum within a narrow temperature range below 20 K. This indicates that Dy 1− x Er Ni 2 solid solutions may be viable option for refrigerants in magnetic cryocoolers suitable hydrogen liquefaction.
In the present work, structural, magnetic, and thermodynamic properties of ${\mathrm{Dy}}_{1\ensuremath{-}x}{\mathrm{Er}}_{x}{\mathrm{Ni}}_{2}$ $(x=0.25,\phantom{\rule{0.16em}{0ex}}0.5,\phantom{\rule{0.16em}{0ex}}0.75)$ Laves-phase intermetallics, being continuous solid solutions in ${\mathrm{DyNi}}_{2}\text{\ensuremath{-}}{\mathrm{ErNi}}_{2}$ system, synthesized by arc melting, are experimentally studied analyzed accordance with mutual substitution within rare-earth sublattice. The...
A comprehensive study of the adiabatic temperature change $\ensuremath{\Delta}{T}_{\text{ad}}$ in vicinity a first-order magnetostructural phase transition has been carried out on ${\text{Ni}}_{2.19}{\text{Mn}}_{0.81}\text{Ga}$ Heusler alloy. It was found that directly measured $\ensuremath{\Delta}{T}_{\text{ad}}\ensuremath{\sim}1\text{ }\text{K}$ is order magnitude smaller than expected from reported literature isothermal magnetic entropy and specific-heat data. new feature materials with...
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...
Abstract To date, significant efforts have been put into searching for materials with advanced magnetocaloric properties which show promise as refrigerants and permit realization of efficient cooling. The present study, by an example Ho 1−x Er x Ni 2 , develops the concept efficiency in rare-earth Laves-phase compounds. Based on magneto-thermodynamic properties, their potentiality components composites is illustrated. determined regularities behaviour heat capacity, magnetic entropy change,...
We calculated magnetic exchange constants and magnetocaloric properties of Ni2Mn1−xCuxGa Heusler alloys by ab initio Monte Carlo methods. The study the influence Cu excess x on strength interactions revealed that weakens Mn-Ni interaction has a complex impact Mn-Mn interactions. Theoretically phase diagram is in good agreement with available experimental data. Calculated method isothermal entropy change ΔSmag Ni2Mn0.75Cu0.25Ga alloy significantly smaller around coupled magnetostructural...
The influence of simultaneous substitution within the rare earth (R) and Co sublattices on structural, magnetic, magnetocaloric properties Laves phase RCo2-type compounds is studied. Main attention devoted to studies magnetostructural transitions transition types with respect alloy composition. Multicomponent alloys Tbx(Dy0.5Ho0.5)1−xCo2 Tbx(Dy0.5Ho0.5)1−xCo1.75Al0.25 were prepared use high purity metals. Majority exhibit magnetic first-order type a large effect. Al for in increases Curie...