Fizika metallov i metallovedenie
ISSN(Print): 0015-3230
Media registration certificate: ПИ № ФС 77 - 79455 от 27.11.2020
Editor-in-Chief: Mushnikov Nikolay Varfolomeevich
Number of issues per year: 12
Indexation: RISC, list of Higher Attestation Commissions, Белый список (2 уровень)
Physics of Metals and Metallography (PMM) was founded in 1955 by the USSR Academy of Sciences. The journal publishes 14 issues per year (12 issues in Russian and English and 13, 14 issues in English only).
Founders
- Russian Academy of Sciences (RAS)
- Ural Branch of Russian Academy of Sciences (UB RAS)
- M.N. Miheev Institute of Metal Physics of Ural Branch of Russian Academy of Sciences (IMP UB RAS)
PMM scope covers the wide range of metals related condensed matter physics and metal materials science, including the following rubrics.
- Magnetism, magnetic materials and spintronics (magnetic phase transitions, magnetic structures, hard and soft magnetic materials, magnetic semiconductors, magnetism in disordered systems, multiferroicity and ferroelectricity, low-dimensional magnetism, magnetism of surface and interfaces, nanomagnetism, spin transport, spin waves, spin relaxation, spin resonance, neutron magnetic scattering.);
- Electronic structure, strongly correlated systems and electron transport (many-body methods, density functional theory, Hubbard and related models, heavy fermions, topological insulators, metamaterials, metal-insulator transitions, electronic transport, galvanomagnetic phenomena, optical properties, optical and X-ray spectroscopies, superconductivity and superconducting materials);
- Surface, interface and nanoscale physics (metal surface structure, surface probes, various spectroscopies, interfaces, metal-semiconductor interface, surface electronic structure and bonding, surface dynamics, interactions on surfaces, mesoscopic systems, microstructures, layered materials, nanostructures, metallic superlattices, fullerenes, graphene, nanotubes, nanoclusters, thin films, molecular electronics, tunneling and other quantum transport phenomena);
- Structure, phase transitions and diffusion phenomena (single- and polycrystal metals materials, disordered systems, positional and compositional disorder, alloys, new phases, defect structures, structural probes and spectroscopy);
- Mechanical properties (strength, plasticity, hardness, brittleness, toughness, impact resistance, tribology, irradiation effects, coatings, high-pressure physics).
Current Issue
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Vol 126, No 4 (2025)
ЭЛЕКТРИЧЕСКИЕ И МАГНИТНЫЕ СВОЙСТВА
Three-dimensional vortex structures
Abstract
The review provides a theoretical description of the structures of currently known three-dimensional magnetic vortices in magnets with and without an inversion center. For the case of an isotropic and uniaxial ferromagnet, the following cnoidal and spiral “hedgehogs”, vortex structures of the “inclusion” type, a vortex filament with various two-dimensional topological charges, a vortex circular filament, and a vortex ring domain wall are considered. The structure of magnetic vortices in various nanostructures is described. It is shown how a spin-transfer nanooscillator can be used to create a dissipative magnetic droplet soliton. For magnets without an inversion center, the structure of vortex objects of the following type is considered: a stack of spin spirals, magnetic skyrmion braids and magnetic skyrmion beams. It is shown that the three-dimensional structure of the vortex is the cause of a nontrivial interaction of skyrmions. An experimentally discovered new type of particle-like state in chiral magnets, the chiral bobber, is described and a concept of magnetic solid-state memory is proposed on its basis.
Fizika metallov i metallovedenie. 2025;126(4):379-422
379-422
Magnetic topological structures in ferromagnetic films with the Dzyaloshinsky–Moriya interaction
Abstract
The influence of the Dzyaloshinskii–Moriya interaction on the formation and stability of 3D magnetic topological structures in exchange-coupled ferromagnetic films with different magnetic anisotropy has been investigated. The magnetization reversal processes in multilayer systems in the presence of a chiral magnetic layer have been analyzed. It has been shown that during the magnetization reversal, three-dimensional topological states such as Bloch points and conical skyrmions are formed, and the structure of topological defects is determined by the magnitude and sign of the Dzyaloshinskii–Moriya constant. The influence of material parameters on the magnetization reversal processes and the stabilization of micromagnetic structures has been studied.
Fizika metallov i metallovedenie. 2025;126(4):423-429
423-429
Superconducting and magnetic properties changes of complex rhodium borides RERh3.8Ru0.2B4 in the series of RE = (Gd, Dy, Ho, Er, Y)
Abstract
Magnetic properties and superconducting characteristics of borides RERh3.8Ru0.2B4 with LuRu4B4 type structure (RE = Y, Er, Ho, Dy), as well as compounds GdRh3.8Ru0.2B4 have been investigated in order to establish formation patterns of superconducting and magnetic subsystems in presented compounds, and their mutual influence. The analysis showed that there is no direct relationship between the critical temperature (Tc) of RERh3.8Ru0.2B4 compounds and their magnetic subsystem. However, a monotonic decrease in the RERh3.8Ru0.2B4 borides critical temperature at successive replacement of RE with Y by Er, Ho, Dy has been established. In this case, the Tc depends linearly on S(S+1), where S is the spin quantum number of the RE+3 ion. Such critical temperature behavior can be associated with the exchange interaction of the conduction electrons spins with the magnetic moments of the RE+3 ions, which increases as the spin quantum number S of the ion increases. The absence of superconductivity in the GdRh3.8Ru0.2B4 compound is also within the established pattern.
Fizika metallov i metallovedenie. 2025;126(4):430-439
430-439
Temperature dependence of the magnetic susceptibility of nanocomposites with particles of lithium-cobalt and lithium-cobalt-nickel orthophosphates
Abstract
The magnetic susceptibility of nanocomposites with particles of lithium-cobalt and lithium-cobalt-nickel orthophosphates in constant and alternating magnetic fields has been studied. Temperature dependences of susceptibility as well as magnetization curves are measured. It is shown that the temperature dependence of a composite with LiNi0.5Co0.5PO4 particles has one maximum at a temperature of TN = 13.5 K, and a state with an incommensurable non-collinear magnetic ordering is not realized. In contrast, a nanocomposite with LiCoPO4 particles has two maxima at temperatures TN = 31.1 K and Tmax= 21.9 K. Below the temperature TN, antiferromagnetic ordering is realized in both nanocomposites.
Fizika metallov i metallovedenie. 2025;126(4):440-449
440-449
Electrical resistivity and optical properties of Co2−XMn1+XAl (x = 0, 0.25, 0.5, 0.75, 1) Heusler alloys
Abstract
In the temperature range from 78 to 293 K, the temperature dependences of the electrical resistivity of Co2−xMn1+xAl (x = 0, 0.25, 0.5, 0.75, 1) Heusler alloys as well as their optical properties in the range of (0.155–5) eV at room temperature. It is shown that the electrical resistivity of all alloys exceeds 250 µOhm×cm and grows with increasing manganese content to values exceeding 380 µOhm×cm, and the type of temperature dependence of electrical resistivity changes from “metallic” for Co2MnAl to “semiconductor-like” for Mn2CoAl with transition through the invar Co1.75Mn1.25Al. It is demonstrated that interband transitions play a crucial role in the formation of the optical properties of the studied alloys. It is found that at room temperature, the electrical conductivity and optical conductivity at 0.38 eV decrease with increasing manganese concentration at x = 0.5 and 0.75, respectively, and then change slightly with increasing x. It is suggested that this behavior is related to changes in the band spectrum of alloys, which are most strongly manifested in the Mn2CoAl alloy.
Fizika metallov i metallovedenie. 2025;126(4):450-455
450-455
СТРУКТУРА, ФАЗОВЫЕ ПРЕВРАЩЕНИЯ И ДИФФУЗИЯ
Distribution of complexes with divalent nickel Ni2+ in single crystals of lithium-gallium spinel Li0.5Ga2.5O4
Abstract
The structural and magnetic nonequivalence of Ni2+ nickel ions in single crystals of lithium-gallium spinel has been studied by Electron Paramagnetic Resonance (EPR). The distribution of ions over sublattices and structurally unequal positions in the unit cell of the crystal lattice of a lithium-gallium spinel single crystal Li0.5Ga2.5O4 is shown. The parameters and properties of materials are determined by this distribution of ions. Two types of centers are formed in a single crystal. Nickel Ni2+ ions are replaced in structurally unequal positions by gallium ions located in a tetrahedral environment and lithium ions located in an octahedral environment. The research can be used to analyze the properties of spinel ferrites and non-monocrystalline materials. The perspective of the work lies in the fact that currently powder materials are usually used in practice. But their properties vary depending on the production technology. Using the example of single crystals, it is shown how the introduced impurity ions are distributed. This distribution occurs uniformly over structurally unequal positions. It should be taken into account that in the case of rapid cooling during the growth of single crystals and films, the ion distribution may be different.
Fizika metallov i metallovedenie. 2025;126(4):456-461
456-461
The structure and properties of structural medium-carbon steel (chromium-nickel-molybdenum-vanadium), in situ alloyed by tungsten during laser powder bed fusion
Abstract
The results of a study of the structure and properties of additive medium carbon steel Fe–0.45C–0.4Si–0.7Mn–0.1V–0.3Mo–0.2Cu–1Cr–1.5Ni (in % by weight) alloyed with tungsten in an amount from 1 to 10% by weight are presented. The possibility of tungsten alloying of steel during additive manufacturing was studied. The alloy was carried out when mixing the powders of armored steel and tungsten, then mixture was selective laser melted. It was confirned that during the medium-carbon steel alloying with a different amount of tungsten, both density and hardness change non-linear. The results of the study can be useful for new materials developing and optimizing the laser powder bed fusion.
Fizika metallov i metallovedenie. 2025;126(4):462-469
462-469
ПРОЧНОСТЬ И ПЛАСТИЧНОСТЬ
Assessment of plasticity and damage of material of fuel element shells irradiated with fast neutrons
Abstract
Mechanical tests of ring samples cut from the lower, central and upper sections of two fuel rods irradiated in the BN-600 reactor were carried out. Using the analysis of the stress-strain state, the values of the destructive stress and the degree of shear deformation accumulated before fracture were obtained, and a quantitative assessment of the damage to the fuel element shell material was performed. The microstructure was additionally investigated. It is shown that with the forged structure and sufficient plasticity reserve, the damage of the irradiated fuel element shell material is at a satisfactory level.
Fizika metallov i metallovedenie. 2025;126(4):470-481
470-481
Study of mechanical properties and corrosion resistance of ultrafine-grained austenitic chromium-nickel steel produced by rotary swaging
Abstract
The microstructure, phase composition, and mechanical properties of austenitic stainless heat-resistant chromium-nickel steel grade 08Cr18Ni10Ti (Fe–0.08%C–18%Cr–10%Ni–0.6%Ti) have been studied. The ultrafine-grained (UFG) structure in steel is formed by the Rotary Swaging (RS) method. UFG steel 08Cr18Ni10Ti has a high strength (ultimate tensile strength sB = 1580 MPa) and low ductility (elongation to failure d ∼ 4%). Electrochemical tests of UFG steel for intergranular corrosion (IGC) resistance according to GOST 9.914–91 were carried out. The formation of a UFG structure in austenitic steel 08Cr18Ni10Ti by the RS method leads to a decrease in its IGC resistance. Annealing leads to a non-monotonic change in the mechanical properties and corrosion resistance of UFG steel. After annealing at 450–500°C, an increase in microhardness and tensile strength is observed, as well as a decrease in the ductility and IGC resistance of UFG steel. An increase in the annealing temperature to 800oC leads to a decrease in strength and an increase in the IGC resistance of UFG steel.
Fizika metallov i metallovedenie. 2025;126(4):482-495
482-495
Study of microstructure, electrical conductivity and mechanical properties of ingot and thin wires made of new alloy Al–0.27Zr–0.17Si–0.30Er
Abstract
The process of precipitation of primary and secondary particles in the Al–0.27Zr–0.17Si–0.30Er alloy (in wt %) produced by casting with induction heating and stirring is studied. The homogeneity of the distribution of the specific electrical resistance (SER, ρ) and microhardness (HV) over the cross section of the ingot is studied, the optimal mode of alloy aging is determined. The values of the yield strength, tensile strength and relative elongation before failure of the coarse-grained alloy samples are determined. The dependences of HV and SER on the annealing temperature and time are plotted and the parameters of the Johnson–Mehl–Avrami–Kolmogorov equation describing the intensity of solid solution decomposition during annealing are determined. Thin (Ø 0.3 mm) wires of the Al–0.27Zr–0.17Si–0.30Er alloy are produced by cold drawing; The strength, SER and hardness of the wires in the initial state and after heat resistance tests in accordance with GOST R 62004–2014 were investigated.
Fizika metallov i metallovedenie. 2025;126(4):496-506
496-506
In memory of Yu.N. Gornostyrev
Fizika metallov i metallovedenie. 2025;126(4):507-508
507-508