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Eu2Pt7MP4−x(M = Cr, Fe) phosphide platinides, intrinsic heterostructures with a high degree of tunable magnetic anisotropy for spintronics applications
Journal of Materials Chemistry C. 2025. Vol. 13. No. 46. P. 23202–23212.
Polevik A., Zakharova E., Nesterenko S., Lyssenko K.A., Bogach A., Azarevich A.
Two quaternary phosphide platinides, Eu2Pt7CrP2.80 (I4/mmm, a = 4.0268(3) Å, c = 26.813(3) Å, V = 434.78(8) Å3, Z = 2, R1 = 0.0328, wR2 = 0.0785) and Eu2Pt7FeP3.02 (I4/mmm, a = 4.0359(6) Å, c = 26.641(5) Å, V = 433.94(16) Å3, Z = 2, R1 = 0.0276, wR2 = 0.0741) were synthesized as single crystals by a high-temperature route using metallic fluxes (Pb or Bi), their crystal structures were established from single-crystal X-ray diffraction data and confirmed by elemental analysis. The compounds crystallize in the tetragonal system, and represent heterostructures built from the alternating layers of AuCu3- and CaBe2Ge2-type fragments. Based on the DFT-calculations both compounds are metallic. Chemical bonding analysis reveals a pattern of covalent, metallic and ionic interactions within each compound. Magnetic measurements show both compounds to be ferromagnetic with a high degree of magnetic anisotropy, and reveal an antiferromagnetic exchange between two magnetic sublattices (europium and chromium or iron), which makes such compounds promising objects for use in spintronics.
Keywords: magnetic anisotropy
Belousov Y., Кискин М. А., Sidoruk A. et al., Australian Journal of Chemistry 2022 Vol. 75 No. 9 P. 572–580
Four new complexes [Ln(pfaa)3(H2O)2]n (Ln = Eu (1), Tb (2)) and [Ln2Cd2(pfaa)10 (phen)2(EtOH)2]·2MeCN (Ln = Eu (3), Tb (4), phen = 1,10-phenanthroline) based on pentaphorphenylacetic acid (Hpfaa) have been prepared and completely investigated. The structures of compounds 1 and 3 were studied by single crystal X-ray diffraction analysis: the isostructural complexes 1 and 2 represent ...
Added: August 26, 2026
Mazur D., Brandyshev P., Doronin S. V. et al., Electrochimica Acta 2026 Vol. 577 Article 149729
The electric double layer (EDL) at a single-crystal metal surface is controlled not only by the electrolyte composition and the electrode potential, but also by the atomic structure of the surface itself. This makes the Ag(hkl)/NaF interface a stringent test for continuum theories of the EDL. In the third part of our series, we examine ...
Added: August 20, 2026
Budkov Y., Kalikin N., Journal of Chemical Physics 2026 Vol. 165 Article 064506
A self-consistent statistical-mechanical theory of the Hall effect in electrolyte solutions is developed by extending the self-consistent Debye–Hückel–Onsager (SCDHO) framework to crossed electric and magnetic fields. The theory incorporates non-local ionic charge distributions via Slater-type form factors, regularizing the Coulomb interaction at short range, and accounts for dielectric friction through ion-specific coefficients, employing experimental values ...
Added: August 12, 2026
Novikov A., New Journal of Chemistry 2026 Vol. 50 P. 13931–13957
The rational design of coinage metal nanocarriers requires a mechanistic understanding of metal-drug binding and predictive descriptors that translate molecular interactions into design rules. Using DFT (B3LYP-D3BJ/def2-TZVP, SMD water), we systematically investigated the binding of 5-fluorouracil (5-FU) and levodopa (l-DOPA) to neutral and cationic homo- and heteronuclear dimers of Au, Ag, and Cu (Au2, Ag2, ...
Added: August 12, 2026
Voropaeva D., S. Novikova, I. Stenina et al., Solid State Ionics 2026 Vol. 445 Article 117288
Composite gel polymer electrolytes based on a perfluorinated sulfonic acid cation-exchange MF-4SC membrane
containing surface-sulfonated nanoparticles of aluminum oxide, cerium (IV) oxide, and titanium oxide (sAl2O3,
sCeO2, and sTiO2, respectively) were prepared by casting from a dispersion in N,N-dimethylformamide and
plasticized with a 1,3-dioxolane/1,2-dimethoxyethane mixture. The influence of the filler nature on ionic conductivity,
solvent uptake, activation energy, lithium ...
Added: July 30, 2026
Korogod D., Shapeev A., Ivan S. Novikov, Physical Review B: Condensed Matter and Materials Physics 2026 Vol. 114 No. 2 Article 024104
We present two models with explicit long-range electrostatics in the form of Coulomb interactions. Both models include point charges depending on their local atomic environments, and the second model also conserves a total charge of an atomic system. We combine the proposed long-range models with the local moment tensor potential (MTP) and demonstrate that they ...
Added: July 22, 2026
Moshkina E., Molokeev M., Zolotov A. et al., Journal of Alloys and Compounds 2026 Vol. 1077 Article 189412
A wide series of substitutions in a subsystem of small radii cations M = Al, Cr, Fe, Ga, Sc is possible in rare-earth borates ReM3(BO3)4 with the huntite structure. However, the existence of these compounds where M = Mn still raises doubts. The study presents a synthetic approach developed in the framework of the flux method allowing for the required ...
Added: June 29, 2026
Schneider M., Zaripov D., Dokin R. et al., Journal of Chemical Theory and Computation 2026 Vol. 22 No. 9 P. 4405–4414
Density functional theory (DFT) is the workhorse of modern reactions and materials modeling. While the exact functional remains unknown, many approximations to it have been constructed either by hand-crafting functional forms to satisfy exact constraints or by machine learning. In this work, we show how both of these approaches can be fused to build both ...
Added: June 26, 2026
Laurinavichyute V., Levin E. E., Mironkova A. A. et al., Surfaces and Interfaces 2026 Vol. 81 Article 108389
In this work we characterize mixed Mo-W acidic deposition solutions with Mo content ranging from 0 to 100 mol.% by Raman and UV–Vis spectroscopy. The obtained distribution diagram of mixed isopolyanions allows one to explain the observed change in film deposition rate with increase in Mo content. It was found that the initial decrease in ...
Added: June 24, 2026
Filippova A. V., Yurchenko N. Y., Smirnov S. A. et al., Journal of Alloys and Compounds 2026 No. 1074 Article 189162
This study investigates the effects of post-processing heat treatment at 300–500 °C on the microstructure, hardness, and tensile properties of laser powder bed fusion (PBF-LB) processed Al-bronze processed with energy densities (ED) in the range of 125–938 J/mm3. In the as-printed state, sharp needle-like α + β′ laths form at lower ED whereas with increasing ED, the β′ ...
Added: June 12, 2026
Obijiofor O., Novikov A., New Journal of Chemistry 2026 Vol. 50 No. 23 P. 9749–9768
Rational design of gold-based nanocarriers for neurotherapeutics requires atomic-scale understanding of drug-material interactions. Density functional theory calculations were performed to investigate levodopa (L-DOPA) adsorption on small gold clusters (Au2–Au4) with cationic, neutral, and anionic charges, with additional validation on a larger Au10 cluster using multiple low-energy isomers. Binding free energies (ΔGbind), charge transfer, and electronic descriptors ...
Added: June 3, 2026
Das A., Saikia J., Maji N. et al., ChemNanoMat 2026 Vol. 12 No. 5 Article e202500733
Developing efficient photoactive materials from bio-derived resources is vital yet challenging for achieving effective water splitting performance. In this work, nano carbon dots (CDs) of zero-dimensional (0D) were synthesized from papaya peel through a simple and eco-friendly process and subsequently anchored onto the two-dimensional (2D) layered structure of graphitic carbon nitride (g-C3N4, GCN) at various ...
Added: June 2, 2026
Wary R. R., Mahato B., Sharma N. et al., The Journal of Physical Chemistry Letters 2026 Vol. 17 No. 17 P. 5099–5107
Development of heterojunction materials is an efficient approach for enhancing photocatalytic and photoelectrochemical processes. We develop a ZnO/CuO heterojunction via Cu doping into a ZnO matrix. Structural characterization confirmed that Cu was effectively incorporated into ZnO without any structural changes. The improved optical properties and reduced charge carrier recombination of the doped samples were confirmed ...
Added: June 2, 2026
Ostovari Moghaddam A., Mehrabi-Kalajahi S., Hossein Vasigh S. A. et al., The Journal of Physical Chemistry Letters 2026 Vol. 17 No. 13 P. 3978–3985
Water electrolysis is a key technology for sustainable energy conversion and hydrogen generation. Recently, high-entropy oxides (HEOs) have emerged as promising materials because they allow tuning of structural, electronic, and catalytic properties in multifunctional systems. Here, we report the synthesis of a multicomponent La(FeCoCuTiNiMnMgSnZn)O3 perovskite, and its hybridization with reduced graphene oxide (rGO) to form a ...
Added: June 1, 2026
Chowdhury U., Mondal S., Dey S. et al., Journal of the american chemical society 2026 Vol. 148 No. 23 P. 24538–24550
Covalent functionalization offers a versatile platform to engineer carbon nanotube properties for optoelectronics applications. We demonstrate by atomistic quantum dynamics simulation that covalent functionalization can renormalize the CNT band gap, split the degenerate CNT band edge states, and strongly influence charge carrier separation and recombination dynamics. Open-ring CNT functionalization (O-CNT) largely retains the π-conjugation, whereas ...
Added: June 1, 2026
Jiménez-Grávalos F., Alexander S. Novikov, Pendás Á. M., Communications in Computational Chemistry 2026 Vol. 8 No. 2 P. 203–210
Chalcogen bonds (ChBs) are often interpreted as 𝜎-hole driven electrostatic interactions between a chalcogen atom and a Lewis base, yet their covalent character remains under active discussion. Here, we present a real-space, reference-free study of prototypical X2Ch···X– complexes (X = F, Cl; Ch = O, S) using the Interacting Quantum Atoms (IQA) energy decomposition within ...
Added: May 27, 2026
Sajhulov T. A., Matveev A. A., Demidov V. V. et al., Журнал экспериментальной и теоретической физики 2025 Т. 168 № 4 С. 500–508
A series of SrMnO₃/La₀.₇Sr₀.₃MnO₃ heterostructures with different thicknesses of the antiferromagnetic SrMnO₃ layer were grown by magnetron sputtering. The magnetic characteristics of the SrMnO₃/La₀.₇Sr₀.₃MnO₃ heterostructure, including the magnitude of unidirectional anisotropy at various thicknesses of the antiferromagnetic SrMnO₃ layer, were determined using ferromagnetic resonance. The results of X-ray structural analysis of the obtained samples are ...
Added: November 19, 2025
Noginova N., Gubanov V., Shahabuddin M. et al., Applied Magnetic Resonance 2021 Vol. 52 No. 7 P. 749–758
Permalloy films with one-dimensional profile modulation of submicron periodicityare fabricated based on commercially available DVD-R discs and studied using ferromagnetic resonance method and micromagnetic numerical simulations. The mainresonance position shows in-plane angular dependence which is strongly reminis-cent of that in ferromagnetic films with uniaxial magnetic anisotropy. The main sig-nal and additional low-field lines are attributed ...
Added: December 16, 2022
Павлов А. А., Некорн Й., Зубкевич С. В. et al., Inorganic Chemistry 2021 Vol. 59 No. 15 P. 10746–10755
Herein, we combine for the first time SQUID magnetometry, cw-EPR, THz-EPR, and paramagnetic NMR spectroscopies to study the magnetic properties of a high-spin cobalt(II) heteroscorpionate complex. Complementary information provided by these methods allowed precise determination of the magnetic interaction parameters, thereby removing the ambiguity inherit to single-method studies. We systematically investigate the extent to which ...
Added: March 18, 2022
Novikov V., Нелюбина Ю. В., Успехи химии 2021 Т. 90 № 10 С. 1330–1358
Many paramagnetic metal complexes have emerged as unique magnetic materials (single-molecule magnets), which behave as conventional magnets at the single-molecule level, thereby making it possible to use them in modern devices for data storage and processing. The rational design of these complexes, however, requires a deep understanding of the physical laws behind a single-molecule magnet ...
Added: March 18, 2022
Malkin B., Elena A. Popova, Chukalina E. et al., Physica Status Solidi - Rapid Research Letters 2020 Vol. 14 No. 3 P. 190063-1–190063-5
Magnetic properties of antiferromagnetic quasi‐one‐dimensional YFe3(BO3)4 crystals are studied based on the analysis of the measured optical spectra of the Fe3+ ions in different rare‐earth iron borates and self‐consistent four‐particle cluster approach to helical iron chains. Parameters of crystal fields affecting the Fe3+ ions are calculated in the framework of exchange charge model. Parameters of ...
Added: October 30, 2019
Magnetic anisotropy of polycrystalline high-temperature ferromagnetic MnxSi1-x (x ≈ 0.5) alloy films
Drovosekov A. B., Kreines N. M., Savitsky A. O. et al., Journal of Magnetism and Magnetic Materials 2017 No. 429 P. 305–313
A set of thin film MnxSi1-x alloy samples with different manganese concentration x≈0.44−0.63 grown by the pulsed laser deposition (PLD) method onto the Al2O3(0001) substrate was investigated in the temperature range 4–300 K using ferromagnetic resonance (FMR) measurements in the wide range of frequencies (<img />) and magnetic fields (<img />). For samples with x≈0.52−0.55, FMR data show clear evidence ...
Added: February 15, 2017
Drovosekov A. B., Kreines N. M., Savitsky A. O. et al., EPL 2016 No. 115 P. 37008
Thin films of MnxSi1−x alloys with different Mn concentration <img /> grown by the pulsed-laser deposition (PLD) method onto the Al2O3 (0001) substrate were investigated in the temperature range 4–300 K using ferromagnetic resonance (FMR) measurements in the wide range of frequencies <img /> and magnetic fields <img />. For samples with <img />, FMR data show clear evidence of ferromagnetism (FM) ...
Added: February 15, 2017
Drovosekov A. B., Kreines N. M., Savitsky A. O. et al., / Series cond-mat "arxiv.org". 2015.
A set of thin film Mn<sub>x</sub>Si<sub>1-x</sub> alloy samples with different manganese concentration x = 0.44 - 0.63 grown by the pulsed laser deposition (PLD) method onto the Al<sub>2</sub>O<sub>3</sub> (0001) substrate was investigated in the temperature range 4 - 300 K using ferromagnetic resonance (FMR) measurements in the wide range of frequencies (f = 7 - 60 GHz) ...
Added: June 17, 2016