Сверхпроводимость в тонких пленках нитрида рутения

А. С. Ильин; А. О. Стругова; И. А. Кон; О. А. Соболевский; Л. А. Моргун; Садаков А. В.; Мартовицкий В. П.; Рыбальченко Г. В.; С. В. Зайцев-Зотов

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Сверхпроводимость в тонких пленках нитрида рутения

С. 105–106.

Ilin A., Стругова А. О., Кон И. А., Sobolevskiy O., Morgun L., Садаков А. В., Мартовицкий В. П., Рыбальченко Г. В., Zaitsev-Zotov S.

Language: Russian

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Keywords: Critical temperature Критическая температура superconductivity сверхпроводимость тонкие пленки thin films superconducting thin films сверхпроводниковые тонкие пленки critical field критическое поле ruthenium nitride reactive magnetron sputtering нитрид рутения реактивное магнетронное распыление

In book

Нанофизика и наноэлектроника. Труды XXVII Международного симпозиума (Нижний Новгород, 13–16 марта 2023 г.) в 2х томах. Том 1

Т. 1: Секции 1, 2, 4, 6. , Н. Новгород: ИПФ РАН, 2023.

Combined Experimental and Ab Initio Study of Sc Doping in MgB2: Decoupling Electronic and Microstructural Effects on Superconductivity

Dikhtievskaya K., Argunov E., Kartsev A. et al., The Journal of Physical Chemistry Letters 2026 Vol. 17 No. 17 P. 4999–5004

In this study we revealed the effect of scandium doping on the electronic and superconducting properties of the MgB2 compound. Calculations demonstrate that Sc substitutes for Mg atoms, acting as an electron donor. Mg substitution diminishes the density of states in the σ-band and attenuates the electron–phonon coupling, thereby elucidating the reduction in critical temperature. Simultaneously, ...

Added: June 2, 2026

Observation of plasma excitations of superconducting electrons in NbN thin films

S. A. Andreeva, Dzhikirba K. R., Shibalov M. V. et al., Physical Review B: Condensed Matter and Materials Physics 2026 Vol. 113 No. 10 Article L100503

In present work we report the first observations of two-dimensional plasma resonance with linear dispersion in superconducting NbN films fabricated by atomic layer deposition on sapphire and high-resistive (HR) silicon substrates. We have detected several consecutive resonance dips in THz transmission of the sample processed into the disc geometry. Increasing temperature results both in the ...

Added: March 12, 2026

Strain-induced superconducting proximity effect in the topological insulator TaSe3

Lukmanova R.M., Cohn I.A., Minakova V. E. et al., Physical Review B: Condensed Matter and Materials Physics 2025 Vol. 111 No. 22 Article 224510

The magnetoresistance of superconductor–topological insulator–superconductor structures, with indium as the superconductor and TaSe3 as the topological insulator, shows steplike features on the resistance under magnetic fields. These resistance steps result from the suppression of superconductivity, induced by the superconducting proximity effect in both the bulk and surface states of the topological insulator. The position and ...

Added: March 11, 2026

Control of thin NbN film superconducting properties by ScN buffer layer

Porokhov N. V., Dryazgov M. A., Shevchenko A. R. et al., Superconductor Science and Technology 2026 Vol. 39 No. 2 Article 025026

This work investigates the effect of a scandium nitride (ScN) buffer layer on the superconducting properties of niobium nitride (NbN) thin films. The use of a ScN buffer layer significantly improves the characteristics of 29 nm-thick NbN films: the critical temperature increases from 9 K to 12.5 K, while the resistivity at 20 K decreases from 330 µΩ·cm ...

Added: March 1, 2026

Revealing Majorana Zero Modes in Vortex Cores via Nonmagnetic Impurities

Vyacheslav D. Neverov, Karabassov T., Andrey V. Krasavin et al., Research 2026 Vol. 9 Article 1087

Majorana zero modes (MZMs) localized in vortex cores of topological superconductors are widely regarded promising building blocks for fault-tolerant quantum computation. However, their unambiguous detection is hindered by the extremely small energy spacing separating them from conventional Caroli-de Gennes-Matricon states. Using a microscopic Bogoliubov-de Gennes approach, we demonstrate that nonmagnetic impurities, rather than suppressing, can ...

Added: February 17, 2026

Особенности термодинамики сверхпроводящего состояния в режиме перехода между первым и вторым родами сверхпроводимости

Kononova N., В кн.: XII Международная молодежная научная школа-конференция «Современные проблемы физики и технологий».: НИЯУ МИФИ, 2025. С. 167–169.

В работе исследованы термодинамические характеристики сверхпроводящего конденсата (вихревой материи), характерной для однозонных сверхпроводников в режиме перехода из первого рода во второй. На основе анализа изменения зависимости энергии Гиббса системы вихрей от внешнего магнитного поля сделаны выводы о характерных типах зависимости F(B) для такого перехода. Результаты демонстрируют, что для однозонных сверхпроводников в режиме межтиповой сверхпроводимости наблюдается ...

Added: February 2, 2026

Stability and Superconductivity of Ternary Polyhydrides

Semenok D., Zhou D., Chen W. et al., Annalen der Physik 2025 Vol. 538 No. 1 Article e00467

We review five years of experimental and theoretical attempts (2020–2025) to enhance the superconducting critical temperature (Tc) of hydrogen-rich compounds by alloying binary superhydrides with additional elements. Despite predictions of higher Tc in ternary systems such as La–Y–H, La–Ce–H, and Ca–Mg–H, experiments consistently show that the maximum Tc in disordered ternary superhydrides does not exceed that of the ...

Added: January 24, 2026

Microscopic study of the intermediate mixed state in intertype superconductors

Vyacheslav D. Neverov, Kalashnikov A., Andrey V. Krasavin et al., Beilstein Journal of Nanotechnology 2026 Vol. 17 P. 57–62

We present a comprehensive microscopic study of the intermediate mixed state in superconductors of the intertype (IT) regime separating types I and II. Using fully self-consistent Bogoliubov–de Gennes calculations for a lattice model, we analyze few-vortex configurations across the entire temperature range 0 < T < Tc. Our results demonstrate the key features of IT superconductivity, ...

Added: January 8, 2026

Geometry-controlled engineering of the low-temperature proximity effect in normal metal–superconductor junctions

Tomayeva M., Vyacheslav D. Neverov, Andrey V. Krasavin et al., Beilstein Journal of Nanotechnology 2025 Vol. 16 P. 2265–2273

In the ballistic regime at finite temperatures, the proximity effect diminishes following an exponential pattern; however, at low or zero temperatures, this transition alters to a decay characterized by a power law with a dimensionality-dependent exponent. Here, we extend the current understanding of the proximity effect by exploring the role of normal metal–superconductor (NS) junction ...

Added: January 8, 2026

Study of low temperature reactive magnetron sputtering NbN films for fabrication of an ultra-high sensitive detector

Ивашенцева И. В., Каурова Н. С., Воронов Б. М. et al., St. Petersburg Polytechnical University Journal: Physics and Mathematics 2025 Vol. 18 No. 3.2 P. 129–133

This paper focuses on the study of reactive magnetron sputtering thin NbN films for sensitization of hot electron bolometers. HEB will be utilized in the Millimetron space observatory. The main principle of operation is a superconductivity that is experimentally observed when NbN film is cooled to the temperature of a liquid helium. At a critical ...

Added: December 24, 2025