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Нанопроволоки из двух- и трехкомпонентных сплавов: корреляция структурных и магнитных свойств
Физика твердого тела. 2022. Т. 64. № 9. С. 1144–1152.
Хайретдинова Д. Р., Долуденко И. М., Панина Л. В., Загорский Д. Л.
Huang D., Chen Y., Luo X. et al., Chinese Journal of Physics 2026 Vol. 103 P. 1803–1814
Using self-consistent Bogoliubov-de Gennes calculations for kagome flakes framed by armchair
and flat edges, we observe a configuration-dependent spatial inhomogeneity of an 𝑠-wave superconducting
condensate. Specifically, at half-filling, the local pair potential is significantly enhanced
by up to 77.8% at edge centers and up to 148.9% at corners, subsequently boosting their
local critical temperatures by up to 13.5% and ...
Added: September 7, 2026
Marychev P., Shanenko A., Physical Review B: Condensed Matter and Materials Physics 2026 Vol. 114 No. 7 Article 074509
We investigate the effect of weak interband impurity scattering on the intertype (IT) domain between type-I and type-II superconductivity in diffusive two-band superconductors. Our results show that the significant broadening of the IT domain with increasing band diffusivity ratio, previously established in the absence of interband scattering, persists under weak interband scattering. However, depending on ...
Added: September 7, 2026
Denis K., Н. Новгород: Нижегородский государственный университет им. Н.И. Лобачевского, 2025.
В учебном пособии излагаются элементы теории и описание избранных экспериментальных результатов, полученных в активно развивающейся физике топологических изоляторов. Рассмотрены наиболее простые модели поверхностных и краевых состояний в двумерных и трёхмерных топологических изоляторах, их структура в магнитном поле, а также основы топологических методов для определения их свойств. Обсуждаются модели квантовых точек, формируемых в топологических изоляторах. Приведены ...
Added: September 6, 2026
Denis K., Звонков Б. Н., Вихрова О. В. et al., Физика твердого тела 2021 Т. 63 № 9 С. 1245–1252
Сочетанием методов МОС-гидридной эпитаксии и импульсного лазерного нанесения изготовлены гетеронаноструктуры InGaAs/GaAs со слоем (Ga, Mn)As на поверхности, и исследовано влияние воздействия импульсного эксимерного лазера (длина волны 248 nm, длительность импульса ~30 ns, плотность энергии в диапазоне 200-360 mJ/cm2) на их излучательные, структурные и гальваномагнитные свойства. При исследованиях использовалась спектроскопия фотолюминесценции, дополненная возможностью анализа поляризационных характеристик ...
Added: September 6, 2026
Воздействие импульсов эксимерного лазера на светоизлучающие InGaAs/GaAs-структуры с (Ga, Mn)As-слоем
Denis K., Вихрова О. В., Данилов Ю. А. et al., Физика твердого тела 2021 Т. 63 № 3 С. 346–355
Исследована возможность модифицирования лазерным отжигом свойств слоя (Ga, Mn)As, расположенного на поверхности квантово-размерной InGaAs/GaAs-структуры, с сохранением ее излучательных свойств. Для проведения исследований сочетанием методов МОС-гидридной эпитаксии и импульсного лазерного нанесения были изготовлены структуры с четырьмя квантовыми ямами InGaAs/GaAs, (содержание индия от 0.08 до 0.25), расположенными на различном расстоянии от слоя (Ga, Mn)As. В процессе исследований ...
Added: September 6, 2026
Denis K., Lavrukhina E. A., Journal of Physics: Conference Series 2021 Vol. 2103 Article 012201
A model of quasistationary states is constructed for the one-dimensional edge states propagating along the edge of a two-dimensional topological insulator based on HgTe/CdTe quantum well in the presence of magnetic barriers with finite transparency. The lifetimes of these quasistationary states are found analytically and numerically via different approaches including the solution of the stationary ...
Added: September 6, 2026
Denis K., Dorokhin M. V., Ved M. V. et al., Physical Review B: Condensed Matter and Materials Physics 2021 Vol. 104 No. 12 Article 125309
The GaAs/InGaAs quantum wells with a ferromagnetic δ〈Mn〉 layer in GaAs barrier demonstrate a set of interesting spin-related phenomena originating from Mn-hole interaction. One of such phenomena is a spin-memory effect which consists of Mn spin polarization induced by interaction with vicinity spin-polarized holes generated under the exposure by short circularly polarized light pulses. Here long Mn ...
Added: September 6, 2026
Denis K., Запруднов Н. А., Физика и техника полупроводников 2022 Т. 56 № 10 С. 973–978
Исследована динамика туннелирования и спина для дырочных состояний в двойной квантовой точке на основе GaAs при наличии сильного спин-орбитального взаимодействия и периодического электрического поля. Рассмотрены режимы туннелирования с переворотом спина в условиях "медленной" эволюции, при которой частота поля меньше остальных энергетических параметров стационарной части гамильтониана. Обнаружено, что в таких условиях туннелирование с переворотом спина может ...
Added: September 6, 2026
Denis K., Kalentyeva I. L., Vikhrova O. V. et al., Journal of Magnetism and Magnetic Materials 2022 Vol. 556 Article 169360
We have investigated the layers of the (Ga,Mn)As diluted magnetic semiconductor with the thickness in the range of 150 – 400 nm, which have been formed by the combination of the methods of a pulsed laser deposition and a post-growth pulsed laser annealing. It has been found that the laser annealing has a significant effect on the structural, ...
Added: September 6, 2026
Denis K., Konakov A. A., Lavrukhina E. A., Journal of Physics: Condensed Matter 2022 Vol. 34 Article 405302
A model of bound state formation from the delocalized edge states of 2D topological insulator (TI) is derived by considering the effects of magnetic barriers attached to the edge of the HgTe/CdTe quantum well. The resulting structure has a spatial form of 1D quantum dot (QD) with variable number of bound states depending on barrier ...
Added: September 6, 2026
Denis K., Studenikin S. A., Physical Review B: Condensed Matter and Materials Physics 2022 Vol. 106 No. 19 Article 195414
Single-spin state evolution induced by the Landau-Zener-Stückelberg-Majorana (LZSM) interference in a Zeeman-spit four-level system in a periodically driven double quantum dot is studied theoretically by the Floquet stroboscopic method. An interplay between spin-conserving and spin-flip tunneling processes with the electric dipole spin resonance (EDSR) that is induced in an individual dot and enhanced by the ...
Added: September 6, 2026
Denis K., Лаврухина Е. А., Тележников А. В., Физика и техника полупроводников 2023 Т. 57 № 7 С. 551–554
Разработана модель локализованных состояний в двойной квантовой точке на крае топологического изолятора на основе квантовой ямы HgTe/CdTe, сформированной тремя магнитными барьерами. Исследованы особенности энергетического спектра, плотности вероятности и спиновой плотности квантовых состояний в зависимости от ориентации векторов намагниченности магнитных барьеров. Изучена локализация волновых функций слева и справа от точки антикроссинга в спектре и сделан вывод ...
Added: September 6, 2026
Denis K., Bastrakova M. V., Munyaev V. O. et al., Physical Review B: Condensed Matter and Materials Physics 2023 Vol. 108 No. 20 Article 205404
Subharmonics of electric dipole spin resonance (EDSR) mediated by Landau-Zener-Stückelberg-Majorana tunneling transitions are studied numerically and analytically in a Zeeman-split four-level system with strong spin-orbit coupling that can be realized, for example, in a GaAs-based double quantum dot in a single-hole regime. The spin qubit is formed in one of the dots and the second ...
Added: September 6, 2026
Kaveev A. K., Fedorov V. V., Pavlov A. V. et al., Journal of Materials Chemistry C 2026 Vol. 14 No. 7 P. 2697–2705
Bismuth nanostructures represent a promising material platform for semiconductor nanooptoelectronics and colorimetry owing to the multi-colored light reflection and quantum confinement. In this work, we study the photoluminescent properties of bismuth nanostructures grown using molecular beam epitaxy on the planar CaF2/Si(111) surface. We demonstrate the different surface morphologies of Bi, ranging from planar films obtained ...
Added: May 19, 2026
Ekaterina N. Zorina-Tikhonova, Matiukhina A., Korlyukov A. et al., CrystEngComm 2025 Vol. 27 No. 20 P. 3352–3361
In this work, new NiII coordination compounds with cyclopropane-1,1-dicarboxylic acid (H2cpdc) dianions were synthesized: {[Na2Ni(cpdc)2(H2O)6]·4H2O}n (1), {[K6Ni3(cpdc)6(H2O)10]·8H2O}n (2),
{[Rb6Ni3(cpdc)6(H2O)12]·5.5H2O}n (3), and [Cs2Ni(cpdc)2(H2O)8]n (4). All complexes contained mononuclear bischelate fragments {NiII(cpdc)2(H2O)2}2− bound by alkali atoms in a 1D coordination polymer for 1, 2D for 2 and 4, and 3Dfor 3. In the topological representation of coordination bonds ...
Added: June 3, 2025
Kaveev A., Fedorov V., Pavlov A. et al., Journal of Materials Chemistry C 2025 Vol. 13 No. 12 P. 6063–6072
InAsP-based nanoheterostructures are in great demand in mid-infrared photonics for telecom and sensing applications. While the vapor–liquid–solid grown nanowires have demonstrated the potential to control the crystal phase and vary the InAsP alloy composition in a wide range, the use of a foreign gold catalyst adversely affects their optoelectronic properties. Here we address the limitations ...
Added: February 25, 2025
Matiukhina A., Ekaterina N. Zorina-Tikhonova, Daniil O. Blinou et al., Journal of Magnetism and Magnetic Materials 2025 No. 614 Article 172650
The interaction of Co(NO3)2⋅6H2O and MI2CO3 (MI = Rb or Cs) with dimethylmalonic acid (H2Me2mal) leads to
the formation of 3D polymeric compounds: {[Co4Rb8(Me2mal)8(H2O)8]⋅5H2O}n (1) and {[CoCs2(Me2mal)2
(H2O)4]⋅H2O}n (2), respectively. The structures of 1 and 2 were characterized using X-ray diffraction analysis
and IR spectroscopy. Each complex contains CoII atoms arranged in four vertex polyhedra. Both compounds
exhibit field-induced ...
Added: February 20, 2025
Ahmad Ostovari Moghaddam, Fereidonnejad R., Naseri M. et al., Metals and Materials International 2023 Vol. 30 P. 1424–1429
This study demonstrates the possibility of bringing novel Full Heusler high-entropy intermetallic compounds (FH-HEICs) to nanoscale regime. To this end, Co2(FeNiMnMgZn)Al, Co2(TiZrTaNbCr)Al and Cr2(TiZrTaNbV)(AlSi) FH-HEICs are prepared by mechanical alloying for 20 h. All FH-HEICs crystallize in a mixture of partially ordered B2-type and disordered A2-type crystal structures, which exhibit higher degree of disordering compared to ...
Added: January 23, 2025
Ahmad Ostovari Moghaddam, Zaitseva O., Uporov S. et al., Iranian Journal of Materials Science and Engineering 2024 Vol. 21 No. 3 P. 16–22
High entropy intermetallic compounds (HEICs) are an interesting class of materials combining the
properties of multicomponent solid solutions and the ordered superlattices in a single material. In this work,
microstructural and magnetic properties of (CoCuFeMnNi)Al, (CoCuFeMnNi)Zn3, (FeCoMnNiCr)3Sn2,
(FeCoNiMn)3Sn2 and Cu3(InSnSbGaGe) HEICs fabricated by induction melting are studied. The magnetic
properties of the HEICs were determined mainly by the nature ...
Added: January 12, 2025
Harin E. V., Sheftel E. N., Tedzhetov V. A. et al., Thin solid films 2024 Vol. 807 Article 140544
Investigation and quantifying of the parameters of the phase and structure state, static magnetic properties, magnetic microstructure formed over the entire volume of the film and in the near-surface layer, the surface roughness of Fe72.4Ti5.4B19.2O3.0 film were carried out using the combination of the methods such as x-ray diffraction, magnetic force microscopy, atomic force microscopy, ...
Added: December 9, 2024
Shugabaev T., Gridchin V., Ivan A. Melnichenko et al., Physica Status Solidi - Rapid Research Letters 2025 Vol. 19 No. 4 Article 2400296
A significant (up to 4 times) photoluminescence enhancement of single InP/InAsP/InP nanowires transferred onto a silicon oxide-covered silver layer on silicon substrate with a metal surface roughness level of less than 1 nm and a dielectric thickness of 5 nm has been demonstrated. This phenomenon is explained by the interaction of electron–hole pairs in the semiconductor with ...
Added: November 15, 2024
Шугабаев Т., Гридчин В. О., Мельниченко И. А. et al., Journal of Optical Technology 2024 Т. 91 № 1 С. 3–13
Subject of study. The subject of this study was the integration of indium gallium nitride (InGaN) nanowires with silver nanoparticles and the examination of the photoluminescent properties of the resulting hybrid nanostructures. Aim of study. This study aimed to improve the luminescent characteristics of InGaN nanowires by decorating their surface with colloidal silver nanoparticles. Method. Silver nanoparticles of various sizes ...
Added: October 18, 2024
Zorina-Tikhonova E., Chistyakov A., Novikova V. et al., CrystEngComm 2023 Vol. 25 No. 19 P. 2859–2870
Added: September 17, 2024
Rinat F. Salikov, Belyy A., Matvey K. Ilyushchenko et al., Chemistry - A European Journal 2024 Vol. 30 No. 41 Article e202401041
Investigations of the nature and degree of antiaromaticity of cycloheptatrienyl anion derivatives using both experimental and computational tools are presented. The ground state of cycloheptatrienyl anion in the gas phase is triplet, planar and Baird-aromatic. In DMSO, it assumes a singlet distorted allylic form with a paratropic ring current. The other derivatives in both phases ...
Added: July 12, 2024