Особенности получения методом матричного синтеза, структура и магнитные свойства нанопроводов из железа

Д. Л. Загорский; И. М. Долуденко; Фролов К. В.; Перунов И. В.; Чуев М. А.; Чумаков Н. К.; И. В. Калачикова; Артемов В. В.; Цыганова Т. В.; Кругликов С. С.

doi:10.21883/FTT.2023.06.55653.11H

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Особенности получения методом матричного синтеза, структура и магнитные свойства нанопроводов из железа

Физика твердого тела. 2023. Т. 65. № 6. С. 973–978.

Загорский Д. Л., Долуденко И. М., Фролов К. В., Перунов И. В., Чуев М. А., Чумаков Н. К., Калачикова И. В., Артемов В. В., Цыганова Т. В., Кругликов С. С.

Research target: Physics Nanotechnologies

Language: Russian

DOI

Keywords: матричный синтез matrix synthesis Magnetic nanowires магнитные нанопроволоки

Electrically driven Rabi dynamics of magnetic field induced corner states in a two-dimensional topological insulator

D.V. Khomitsky, Lavrukhina E. A., Krasavin D. P. et al., Physical Review B: Condensed Matter and Materials Physics 2026 Vol. 114 No. 22 Article 225414

We study coherent electric manipulation of magnetic field induced localized states at a double kink of a helical edge in a HgTe/CdHgTe quantum well. An in-plane magnetic field opens a gap in the one-dimensional (1D) edge spectrum, while changes in the edge orientation generate localized in-gap states at the kinks. We show that, for suitable ...

Added: October 23, 2026

Stress tensor in fundamental measure theory of hard-sphere fluids: A thermomechanical approach

Budkov Y., Kalikin N., Journal of Chemical Physics 2026 Vol. 165 No. 16 Article 164108

We derive the local pressure tensor generated by the original Rosenfeld fundamental measure theory (FMT) for hard-sphere fluids from an arbitrary infinitesimal deformation. The variation of a finite-distance FMT kernel is written via the line integrals of the local deformation gradient along the straight segment connecting its end points. The resulting symmetric pressure tensor consists ...

Added: October 22, 2026

Отсутствие отражения фонон-поляритона от края металлической маски на поверхности SiC

Ивченко В. С., Иевлева В. А., Matienko D. et al., Журнал технической физики 2026 № 9 С. 1738–1749

Задача о возбуждении бегущих фонон-поляритонных волн на поверхности полярного кристалла падающей извне световой волной (с частотой, близкой к частоте решеточных колебаний) решена теоретически только для бесконечной открытой поверхности кристалла. В случаях, когда часть поверхности покрыта металлической маской, препятствующей проникновению возбуждающего излучения к атомам среды, и эта маска имеет произвольную форму, общепризнанного решения неоднородной задачи нет. ...

Added: October 20, 2026

Исследование движения сферического фронта клеток в вязком матриксе: роль клеточных делений и взаимодействия клеток с матриксом при развитии опухолей

Logvenkov S. A., Известия РАН. Механика жидкости и газа 2026 № 3 С. 59–75

The problem of the evolution of cell volume fraction in a spherical aggregate composed of cells, extracellular matrix, and fluid is considered. The aggregate is surrounded by extracellular matrix. The problem formulation employs a multiphase model of a biological continuum, previously developed by the author, consisting of two actively interacting solid phases and a fluid. The propagation of ...

Added: October 20, 2026

Electrically driven Rabi dynamics of magnetic field induced corner states in a two-dimensional topological insulator

Lavrukhina E. A., Krasavin D. P., Krishtopenko S. S. et al., Physical Review B: Condensed Matter and Materials Physics 2026 Vol. 114 No. 22 Article 225414

Added: October 19, 2026

Phase Transitions in the Ni2.14Mn0.81Fe0.05Ga Heusler Alloy under the Influence of a Magnetic Fild and Hydrostatic Pressure

Смерчанский П. С., Koledov V. V., Kamantsev A. P. et al., Physics of Metals and Metallography 2026 Vol. 127 No. 6-7 P. 689–693

Heusler alloys of the Ni2MnX family, where X = Ga, In, Sn, …, which have been shown to exhibit giant magnetocaloric effect (MCE) and magnetically controlled shape memory effect due to thermoelastic magnetostructural phase transition (MSPT), continue to attract attention. However, these functional properties are fully manifested in strong magnetic fields of at least several T. Currently, ...

Added: October 19, 2026

Dissipative quantum mechanics of Andreev bound states

Zaikin A., Kalenkov M. S., Physical Review B: Condensed Matter and Materials Physics 2026 Vol. 114 Article 214502

We propose a microscopic scheme that allows to describe ac Josephson effect in superconducting junctions in terms of dissipative quantum dynamics of subgap Andreev bound states. This approach is particularly useful for highly transparent junctions at subgap bias voltages in which case a nontrivial combination of Landau-Zener tunneling between Andreev levels and their instability due to quasiparticle escape ...

Added: October 18, 2026

Landau-Zener Tunneling and Quantum Interference of Andreev States

Zaikin A., Kalenkov M. S., Physical Review Letters 2026 Vol. 137 Article 076004

With the aid of a microscopic theory we derive an effective Hamiltonian that controls quantum dynamics of Andreev states in superconducting nanojunctions out of equilibrium. Resolving the corresponding Schrödinger-like equation we obtain the “wave functions” for Andreev levels and evaluate electric current across the junction in the presence of an external voltage bias.We demonstrate that quantum interference of Andreev ...

Added: October 18, 2026

Structure and conformational dynamics of formamide molecule in the ground and lowest excited electronic states

Тукачев Н. В., Bataev V., Abramenkov A. et al., Computational and Theoretical Chemistry 2016 No. 1080 P. 23–32

Electronic state calculations, such as equilibrium geometry parameters, harmonic vibrational frequencies and potential barriers to conformational transitions (as well as conformer energy differences in excited states), using ab initio methods, such as MP2, CCSD(T), CASSCF, CASPT2 and MRCI, were carried out on the formamide molecule in the ground (S0) and the lowest excited singlet (S1) ...

Added: October 14, 2026

Conformational analysis of N-methylformamide in ground S0 and excited S1 and T1 electronic states

Тукачев Н. В., Bataev V. А., Godunov I. А., Journal of Quantitative Spectroscopy and Radiative Transfer 2016 Vol. 177 P. 291–300

For conformers of the N-methylformamide (HCONHCH3) molecule, calculations of equilibrium geometry parameters, harmonic vibration frequencies, energy differences and potential barriers to conformational transitions were performed in the ground (S0) and lowest excited singlet (S1) and triplet (T1) electronic states. In the S0 state, the molecule exists in trans and cis stable conformations (having Cs symmetry). ...

Added: October 14, 2026

Conformational analysis of acetamide in the ground and lowest excited electronic states

Тукачев Н. В., Bataev V. А., Godunov I. А., Journal of Quantitative Spectroscopy and Radiative Transfer 2017 Vol. 192 P. 30–41

For acetamide molecule (CH3CONH2) in the ground (S0) and lowest excited singlet (S1) and triplet (T1) electronic states calculations of equilibrium geometry parameters, harmonic vibrational frequencies and barriers to conformational transitions (also conformer energy differences in excited states) using following ab initio methods: MP2, CCSD(T), CASSCF, CASPT2 and MRCI were performed. One-, two- and three-dimensional ...

Added: October 14, 2026

Conformational analysis of N-methylacetamide molecule in the ground and excited electronic states

Тукачев Н. В., Bataev V. A., Godunov I. A., Computational and Theoretical Chemistry 2017 Vol. 1113 P. 82–93

Equilibrium geometry parameters, harmonic vibrational frequencies and barriers to conformational transitions and conformer energy differences for N-methylacetamide (CH3CONHCH3) molecule in S0, S1 and T1 electronic states were calculated in MP2 (S0) and CASPT2 (S1, T1) levels of theory. It is known that there are two planar (or effectively planar) conformers of N-methylacetamide in the ground ...

Added: October 14, 2026

Ground state geometry of PPV oligomers

Тукачев Н. В., Maslennikov D., Sosorev A. et al., The Journal of Physical Chemistry Letters 2019 Vol. 10 No. 12 P. 3232–3239

Conformational space of polyphenylenevinylene oligomers is systematically investigated computationally at energies relevant for room temperature dynamics in a solvent and in a solid state. Our calculations show that optimal oligomer structures are essentially planar. However, lack of a deep minimum at the planar geometry allows for large molecular deformations even at very low temperatures. At ...

Added: October 14, 2026

Effects of π-spacer and fluorine loading on the optoelectronic and photovoltaic properties of (X-DADAD)n benzodithiophene-based conjugated polymers

Тукачев Н. В., Akkuratov A., Kuznetsov I. et al., Synthetic Metals 2020 Vol. 259 Article 116231

Four new conjugated polymers based on benzodithiophene, thiophene and 2,1,3-benzothiadiazole or 5,6-difluoro-2,1,3-benzothiadiazole were synthesized and investigated as absorber materials for organic photovoltaics. The effect of (bi)thiophene π-spacers and fluorine substitution on the physicochemical and optoelectronic properties of the polymers was revealed and correlations were drawn with their electrical characteristics in organic solar cells. In particular, ...

Added: October 14, 2026

Toward probing of the local electron–phonon interaction in small-molecule organic semiconductors with Raman spectroscopy

Тукачев Н. В., Nuraliev M., Parashchuk O. et al., Journal of Chemical Physics 2020 Vol. 153 No. 17 Article 174303

Electron–phonon interaction strongly affects and often limits charge transport in organic semiconductors (OSs). However, approaches to its experimental probing are still in their infancy. In this study, we probe the local electron–phonon interaction (quantified by the charge-transfer reorganization energy) in small-molecule OSs by means of Raman spectroscopy. Applying density functional theory calculations to four series ...

Added: October 14, 2026

Impact of the acceptor units on optoelectronic and photovoltaic properties of (XDADAD)n-type copolymers:computational and experimental study

Тукачев Н. В., Klimovich I., Prudnov F. et al., Dyes and Pigments 2021 Vol. 185 Article 108899

A series of ten conjugated polymers incorporating in their molecular frameworks extended DADAD building blocks with thiophene donor (D) and either benzotriazole, benzoxadiazole, benzothiadiazole, difluorobenzothiadiazole or quinoxaline acceptor (A) units were synthesized and characterized. The optoelectronic properties of new polymers were computed and experimentally investigated revealing a good relationship, which can guide further rational design ...

Added: October 14, 2026

Suppression of dynamic disorder by electrostatic interactions in structurally close organic semiconductors

Тукачев Н. В., Sosorev A., Parashchuk O. et al., Physical Chemistry Chemical Physics 2021 Vol. 23 No. 29 P. 15485–15491

Dynamic disorder manifested in fluctuations of charge transfer integrals considerably hinders charge transport in high-mobility organic semiconductors. Accordingly, strategies for suppression of the dynamic disorder are highly desirable. In this study, we suggest a novel promising strategy for suppression of dynamic disorder—tuning the molecular electrostatic potential. Specifically, we show that the intensities of the low-frequency ...

Added: October 14, 2026

Low-frequency vibrational modes in G-quadruplexes reveal the mechanical properties of nucleic acids

Тукачев Н. В., González-Jiménez M., Ramakrishnan G. et al., Physical Chemistry Chemical Physics 2021 Vol. 23 No. 23 P. 13250–13260

Low-frequency vibrations play an essential role in biomolecular processes involving DNA such as gene expression, charge transfer, drug intercalation, and DNA–protein recognition. However, understanding the vibrational basis of these mechanisms relies on theoretical models due to the lack of experimental evidence. Here we present the low-frequency vibrational spectra of G-quadruplexes (structures formed by four strands ...

Added: October 14, 2026

Understanding the emergence of the boson peak in molecular glasses

González-Jiménez M., Barnard T., Russell B. et al., Nature Communications 2023 Vol. 14 Article 215

A common feature of glasses is the “boson peak”, observed as an excess in the heat capacity over the crystal or as an additional peak in the terahertz vibrational spectrum. The microscopic origins of this peak are not well understood; the emergence of locally ordered structures has been put forward as a possible candidate. Here, ...

Added: October 14, 2026

Магнитные свойства слоевых нанопроволок Ni/Cu

Бизяев Д. А., Хайретдинова Д. Р., Загорский Д. Л. et al., Физика металлов и металловедение 2023 Т. 124 № 8 С. 717–725

Исследованы магнитные свойства слоевых нанопроволок (НП), состоящих из чередующихся слоев никеля и меди. В таких структурах магнитные свойства определяются несколькими факторами – аспектным отношением ферромагнитых слоев, дипольным взаимодействием между соседними слоями внутри одной НП, а также взаимодействием соседних НП. Массивы НП были получены методом матричного синтеза. Слои никеля имели фиксированную толщину 400 нм, толщину слоев меди варьировали от 25 ...

Added: December 6, 2023

Особенности процесса гальванического осаждения металлов в порах трековых мембран

Загорский Д. Л., Долуденко И. М., Хайретдинова Д. Р., Мембраны и мембранные технологии 2023 Т. 13 № 2 С. 137–149

В работе рассмотрены особенности получения металлических нанопроволок методом матричного синтеза на основе трековых мембран. В первой части работы рассмотрены основные идеи метода и дан обзор литературы, посвященной получению нанопроволок различных типов – однокомпонентных (из одного металла), и многокомпонентных – из двух или нескольких металлов. Для второго случая рассмотрены варианты получения гомогенных структур – т.н. сплавов и гетерогенных структур ...

Added: December 6, 2023

Применение различных воздействий для получения обособленных или ориентированных магнитных наночастиц

Долуденко И. М., Хайретдинова Д. Р., Загорский Д. Л. et al., Известия РАН. Серия физическая 2023 Т. 87 № 3 С. 321–327

Методом матричного синтеза были получены гетероструктурные нанопроволоки с чередованием медных и никелевых слоев; никелевые слои были затем выделены в виде магнитных наночастиц цилиндрической формы. С целью изучения возможности использования полученных наночастиц в медицине, а именно для адресной доставки лекарств и гипертермии, решались задачи их разделения (преодоления агломерации) и пространственной ориентации соответственно. ...

Added: December 6, 2023

Особенности синтеза, структура, магнитометрия и ЯМР-спектроскопия нанопроволок различных типов

Загорский Д. Л., Долуденко И. М., Хайбулин Р. И. et al., Физика твердого тела 2022 Т. 64 № 9 С. 1153–1161

Исследованы различные типы нанопроволок, полученных методом матричного синтеза — гомогенные (из железа) и гетерогенные (слоевые). Разработана и описана методика получения массивов слоевых нанопроволок, с чередующимися тонкими слоями магнитных и немагнитных металлов (Co/Cu, Ni/Cu). Методами микроскопии (СЭМ и ПЭМ с элементным анализом) изучена топография получаемых структур, диаметры нанопроволок и толщины отдельных слоев, особенности межслоевых интерфейсов. Предложены способы синтеза нанопроволок с тонкими ...

Added: December 6, 2023

Исследование спектров отражения и пропускания массивов гетерогенных ферромагнитных нанопроволок в терагерцовом и дальнем инфракрасном диапазонах

Фомин Л. А., Загорский Д. Л., Чигарев С. Г. et al., Журнал технической физики 2022 Т. 92 № 8 С. 1142–1150

В диапазоне частот от 16 до 50 THz исследованы спектры пропускания, отражения и поглощения массивов гетерогенных нанопроволок из Ni/Co, FeNi/Co и Ni/Fe, выращенных в трековых полимерных мембранах гальваническим методом. Спектры поглощения показали, что доля мощности излучения, поглощаемая нанопроволоками, и его спектр зависят от материалов нанопроволок. Особенности спектров можно объяснить накоплением неравновесного спина за счет диффузии электронов и его ...

Added: December 6, 2023