Magnetic flux trapping in hydrogen-rich high-temperature superconductors
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Magnetic flux trapping in hydrogen-rich high-temperature superconductors
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| Автор |
Minkov, V. S.
Ksenofontov, V. Bud’ko, S. L. Talantsev, E. F. Eremets, M. I. |
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| Тематика |
HIGH TEMPERATURE SUPERCONDUCTORS
HYDROGEN LANTHANUM COMPOUNDS MAGNETIC FLUX MAGNETIC SUSCEPTIBILITY MAGNETOMETERS CRITICAL TEMPERATURES ELECTRICAL TRANSPORT MEASUREMENTS HIGH PRESSURE HIGH-PRESSURE CONDITION HIGH-TEMPERATURE SUPERCONDUCTOR MEASUREMENTS OF NEAR ROOM TEMPERATURE SQUID MAGNETOMETERS TEMPERATURE VALUES TRAPPED FLUX HYDRIDES |
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| Описание |
Recent discoveries of superconductivity in various hydrides at high pressures have shown that a critical temperature of superconductivity can reach near-room-temperature values. However, experimental studies are limited by high-pressure conditions, and electrical transport measurements have been the primary technique for detecting superconductivity in hydrides. Here we implement a non-conventional protocol for the magnetic measurements of superconductors in a SQUID magnetometer and probe the trapped magnetic flux in two near-room-temperature superconductors H3S and LaH10 at high pressures. Contrary to traditional magnetic susceptibility measurements, the magnetic response from the trapped flux is almost unaffected by the background signal of the diamond anvil cell due to the absence of external magnetic fields. The behaviour of the trapped flux generated under zero-field-cooled and field-cooled conditions proves the existence of superconductivity in these materials. We reveal that the absence of a pronounced Meissner effect is associated with the very strong pinning of vortices inside the samples. This approach can also be a tool for studying multiphase samples or samples that have a low superconducting fraction at ambient pressure. © 2023, The Author(s).
U.S. Department of Energy, USDOE; Office of Science, SC; Basic Energy Sciences, BES; Ames Laboratory, AL; Division of Materials Sciences and Engineering, DMSE: DE-AC02-07CH11358; Ministry of Education and Science of the Russian Federation, Minobrnauka: AAAA-A18-118020190104-3; Ural Federal University, UrFU M.I.E. is thankful to the Max Planck community for their support, and U. Pöschl for the constant encouragement. Work at the Ames Laboratory (S.L.B.) was supported by the US Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division, under contract no. DE-AC02-07CH11358. E.F.T. acknowledges financial support by the Ministry of Science and Higher Education of the Russian Federation through grant no. AAAA-A18-118020190104-3 and through a Ural Federal University project within the Priority-2030 Program. We are thankful to V. G. Kogan and J. E. Hirsch for valuable discussions. |
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| Дата |
2024-04-05T16:25:53Z
2024-04-05T16:25:53Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Minkov, VS, Ksenofontov, V, Bud’ko, SL, Talantsev, E & Eremets, M 2023, 'Magnetic flux trapping in hydrogen-rich high-temperature superconductors', Nature Physics, Том. 19, № 9, стр. 1293-1300. https://doi.org/10.1038/s41567-023-02089-1
Minkov, V. S., Ksenofontov, V., Bud’ko, S. L., Talantsev, E., & Eremets, M. (2023). Magnetic flux trapping in hydrogen-rich high-temperature superconductors. Nature Physics, 19(9), 1293-1300. https://doi.org/10.1038/s41567-023-02089-1 1745-2473 Final All Open Access, Hybrid Gold, Green https://www.scopus.com/inward/record.uri?eid=2-s2.0-85162021241&doi=10.1038%2fs41567-023-02089-1&partnerID=40&md5=15de2fdf6438777f6b4fba4dda145111 https://www.nature.com/articles/s41567-023-02089-1.pdf http://elar.urfu.ru/handle/10995/130560 10.1038/s41567-023-02089-1 85162021241 001009953300001 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
Nature Research
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| Источник |
Nature Physics
Nature Physics |
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