КФУ. Карточка публикации. Synthesis of Thin Niobium Films on Silicon and Study of Their Superconducting Properties in the Dimensional Crossover Region

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SYNTHESIS OF THIN NIOBIUM FILMS ON SILICON AND STUDY OF THEIR SUPERCONDUCTING PROPERTIES IN THE DIMENSIONAL CROSSOVER REGION

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2021

Язык

английский

Авторы, сотрудники КФУ

Гумаров Амир Илдусович, автор

Рогов Алексей Михайлович, автор

Тагиров Ленар Рафгатович, автор

Юсупов Роман Валерьевич, автор

Янилкин Игорь Витальевич, автор

Библиографическое описание на языке оригинала

Synthesis of thin niobium films on silicon and study of their superconducting properties in the dimensional crossover region / I.V. Yanilkin, A.I. Gumarov, A.M. Rogov, R.V. Yusupov, L.R. Tagirov // Technical Physics. – 2021. – V.66,N2. – P.263–268. DOI: 10.1134/S1063784221020249

Аннотация

Niobium films with a thickness of 4—100 nm are synthesized on a silicon substrate under ultrahigh vacuum conditions. Measurements of the electrical resistance show a high superconducting transition temperature Tc in the range of 4.7—9.1 К and record-breaking small transition widths ATC in the range of 260— 11 mK. The dependences of Tc and ATC on the magnetic field are investigated, and the superconducting coherence lengths and mean free paths of conduction electrons for different thicknesses of the synthesized films are determined. A significant influence of the magnetic field on ATC is found, which reveals the transition from three- to two-dimensional superconductivity at thicknesses below 10 nm. The dependences of Tc and t?Tc on the thickness of the films and the magnitude of the magnetic field are discussed within the framework of existing theories of superconductivity in thin films of superconducting metals.

Ключевые слова

niobium films, superconductivity

Название журнала

Technical Physics

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85101886809&doi=10.1134%2fS1063784221020249&partnerID=40&md5=405fd5fb963ab74c3c0dcc6644186a1f

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https://repository.kpfu.ru/?p_id=251402

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Гумаров Амир Илдусович	ru_RU
dc.contributor.author	Рогов Алексей Михайлович	ru_RU
dc.contributor.author	Тагиров Ленар Рафгатович	ru_RU
dc.contributor.author	Юсупов Роман Валерьевич	ru_RU
dc.contributor.author	Янилкин Игорь Витальевич	ru_RU
dc.date.accessioned	2021-01-01T00:00:00Z	ru_RU
dc.date.available	2021-01-01T00:00:00Z	ru_RU
dc.date.issued	2021	ru_RU
dc.identifier.citation	Synthesis of thin niobium films on silicon and study of their superconducting properties in the dimensional crossover region / I.V. Yanilkin, A.I. Gumarov, A.M. Rogov, R.V. Yusupov, L.R. Tagirov // Technical Physics. – 2021. – V.66,N2. – P.263–268. DOI: 10.1134/S1063784221020249	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=251402	ru_RU
dc.description.abstract	Technical Physics	ru_RU
dc.description.abstract	Niobium films with a thickness of 4—100 nm are synthesized on a silicon substrate under ultrahigh vacuum conditions. Measurements of the electrical resistance show a high superconducting transition temperature Tc in the range of 4.7—9.1 К and record-breaking small transition widths ATC in the range of 260— 11 mK. The dependences of Tc and ATC on the magnetic field are investigated, and the superconducting coherence lengths and mean free paths of conduction electrons for different thicknesses of the synthesized films are determined. A significant influence of the magnetic field on ATC is found, which reveals the transition from three- to two-dimensional superconductivity at thicknesses below 10 nm. The dependences of Tc and t?Tc on the thickness of the films and the magnitude of the magnetic field are discussed within the framework of existing theories of superconductivity in thin films of superconducting metals.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	niobium films	ru_RU
dc.subject	superconductivity	ru_RU
dc.title	Synthesis of Thin Niobium Films on Silicon and Study of Their Superconducting Properties in the Dimensional Crossover Region	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU