A5056338297- Rare-earth and actinide compounds
- Magnetic Properties of Alloys
- Hydrogen Storage and Materials
- Physics of Superconductivity and Magnetism
- Magnetic and transport properties of perovskites and related materials
- Magnetic properties of thin films
- Advanced Condensed Matter Physics
- Quantum, superfluid, helium dynamics
- Magnetic Properties and Applications
- Ammonia Synthesis and Nitrogen Reduction
- Advanced Chemical Physics Studies
- Superconducting Materials and Applications
- MXene and MAX Phase Materials
- 2D Materials and Applications
- High-pressure geophysics and materials
- Iron-based superconductors research
- Thermodynamic and Structural Properties of Metals and Alloys
- Inorganic Chemistry and Materials
- Magnesium Alloys: Properties and Applications
- Metallurgical and Alloy Processes
- Metal and Thin Film Mechanics
- Advanced NMR Techniques and Applications
- Organic and Molecular Conductors Research
- Shape Memory Alloy Transformations
- Muon and positron interactions and applications
Włodzimierz Trzebiatowski Institute of Low Temperature and Structure Research
2013-2022
Polish Academy of Sciences
2008-2022
Lomonosov Moscow State University
2020
Charles University
2018
Moscow Institute of Physics and Technology
2015
Prokhorov General Physics Institute
2015
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2008
Virtua Voorhees Hospital
2008
Drexel University
2008
University of Wrocław
2004
We report on the electronic, thermal, and elastic properties of layered ternary, Ti2SC. Resistivity, Hall effect, magnetoresistance were measured as a function temperature between 2 300 K at fields up to 9 T. The coefficient is negative roughly independent. transport results analyzed within two-band framework, with electrons dominant charge carrier. room-temperature thermal conductivity (≈60 W/m K) highest any MAX phase date, substantial phonon contribution. specific heat was from K,...
Gadolinium is a nearly ideal soft-magnetic material. However, one cannot take advantage of its properties at temperatures higher than the room temperature where Gd loses ferromagnetic ordering. By using high-purity bulk samples with grains ~200 nm in size, we present proof-of-concept measurements an increased Curie point (TC) and spontaneous magnetization due to hydrogenation. From first-principles explain increase TC pure addition hydrogen. We show that interplay characteristic features...
Rare-earth (R)-iron alloys are a backbone of permanent magnets. Recent increase in price rare earths has pushed the industry to seek ways reduce R-content hard magnetic materials. For this reason strong magnets with ThMn
In this paper, we report on the heat capacities cp of bulk polycrystalline samples Ti2AlC, V2AlC, and Cr2AlC in 3–260K temperature range. Given structural chemical similarities these compounds it is not surprising that cp’s their dependencies were quite similar. Nevertheless, at all temperatures capacity was higher than other two. The density states Fermi level 3.9, 7.5, 14.6(eVunitcell)−1 for Cr2AlC, respectively. results obtained are analyzed using Debye Einstein model approximations cp....
High-purity Gd prepared by distillation is a structurally inhomogeneous system consisting of needle-shaped crystals cross section 0.5–2.5 μm with near-c-axis orientation embedded in matrix nanosized (30–100 nm) grains. By measuring the magnetocaloric effect (MCE) directly, we find that MCE values differ markedly for plate-shaped samples cut out distillate along and perpendicular to crystals. The small controlled amounts impurity (hydrogen) on properties distilled further studied. We observe...
The crystal-field and exchange parameters are determined for the single-crystalline hydride $\mathrm{ErF}{\mathrm{e}}_{11}\mathrm{TiH}$ compound by analyzing experimental magnetization curves obtained in magnetic fields of up to 60 T. By using calculated we succeeded modeling theoretical 200 \cyrchar\CYRT{} study detail transition from ferrimagnetic a ferromagnetic state applied field.
The iron-rich intermetallics ${R}_{2}$Fe${}_{17}$ (where $R$ is a rare-earth element) proved unamenable to anisotropy control via interstitial doping. There only one precedent, Sm${}_{2}$Fe${}_{17}$N${}_{3\ensuremath{-}\ensuremath{\delta}}$ (Sm${}_{2}$Fe${}_{17}$C${}_{3\ensuremath{-}\ensuremath{\delta}}$), where modification has stabilized an easy-axis at all temperatures up ${T}_{\mathrm{C}}$. All previous attempts prepare usable hydride have failed. Now we succeeded in preparing...
The magnetic properties and 57Fe Mössbauer spectra of the compounds YFe11TiHx (x = 0, 1) were investigated. magnetocrystalline anisotropy YFe11Ti its hydride was studied by analysing hard easy magnetization curves single crystal samples in temperature range 4.2–300 K. spontaneous determined wide 4.2–650 It is established that at T 4.2 K constants K1 K2 for YFe11TiH1 reach values 25.8 f.u.−1 0.24 f.u.−1, respectively. effect analysed terms a model which takes into account local environment Fe...
Vibrating-reed measurements of the flexural resonances thin cantilevered samples polycrystalline Nb foils and quasi-two-dimensional ${\mathrm{NbSe}}_{2}$ single crystals reveal extended regions temperature T magnetic field H for reversible flux-line (FL) motion when long reed dimension is perpendicular to applied field. An ``irreversibility line,'' defined by peak reciprocal quality factor, found be frequency (mode)-independent resonant frequencies...
Herein we report on the heat capacities cp of bulk predominantly single-phase polycrystalline samples Ti2SC and Cr2GeC in 3–1500K temperature range Ta2AlC 3–260K range. At temperatures up to 10K main contributors for are electronic, with electronic coefficients γ 7.13 26.12mJ∕molK2, respectively. The latter is exceptionally high a record this family layered ternary carbides nitrides also known as MAX phases. In another low-temperature contribution—in addition 3.8mJ∕molK2—is manifested by an...
A continuous-wave (cw) and pulsed-proton nuclear-magnetic-resonance (NMR) study was conducted on two ${\mathrm{Fe}}_{2}$P-type compounds, $\mathrm{ThNiAl}{\mathrm{H}}_{x}$ $\mathrm{UNiAl}{\mathrm{H}}_{x}$, where $x=2.5 \mathrm{and} 1.9$ for the thorium uranium respectively. The proton cw NMR spectra of compound show a broad line (\ensuremath{\sim} 9 Oe) below 175 K, narrow 1 above 196 superposition between these temperatures. simultaneous appearance lines may be explained in terms either...