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Название: Evidence for the Fulde–Ferrell–Larkin–Ovchinnikov state in bulk NbS2
Авторы: Cho, C. -W.
Lyu, J.
Ng, C. Y.
He, J. J.
Lo, K. T.
Chareev, D.
Abdel-Baset, T. A.
Abdel-Hafiez, M.
Lortz, R.
Дата публикации: 2021
Издатель: Nature Research
Библиографическое описание: Evidence for the Fulde–Ferrell–Larkin–Ovchinnikov state in bulk NbS2 / C. -W. Cho, J. Lyu, C. Y. Ng, et al. — DOI 10.1038/s41467-021-23976-2 // Nature Communications. — 2021. — Vol. 12. — Iss. 1. — 3676.
Аннотация: We present measurements of the magnetic torque, specific heat and thermal expansion of the bulk transition metal dichalcogenide (TMD) superconductor NbS2 in high magnetic fields, with its layer structure aligned strictly parallel to the field using a piezo rotary positioner. The upper critical field of superconducting TMDs in the 2D form is known to be dramatically enhanced by a special form of Ising spin orbit coupling. This Ising superconductivity is very robust to the Pauli paramagnetic effect and can therefore exist beyond the Pauli limit for superconductivity. We find that superconductivity beyond the Pauli limit still exists in bulk single crystals of NbS2 for a precisely parallel field alignment. However, the comparison of our upper critical field transition line with numerical simulations rather points to the development of a Fulde-Ferrell-Larkin-Ovchinnikov state above the Pauli limit as a cause. This is also consistent with the observation of a magnetic field driven phase transition in the thermodynamic quantities within the superconducting state near the Pauli limit. © 2021, The Author(s).
Ключевые слова: ARTICLE
COMPUTER SIMULATION
MAGNETIC FIELD
PHASE TRANSITION
SUPERCONDUCTIVITY
URI: http://elar.urfu.ru/handle/10995/102844
Условия доступа: info:eu-repo/semantics/openAccess
Идентификатор РИНЦ: 46898554
Идентификатор SCOPUS: 85108179074
Идентификатор WOS: 000664863000019
Идентификатор PURE: 22095175
acfabd93-878c-4ec2-be86-28e9f23cfadc
ISSN: 20411723
DOI: 10.1038/s41467-021-23976-2
Сведения о поддержке: We thank U. Lampe for technical support. This work was supported by grants from the Research Grants Council of the Hong Kong Special Administrative Region, China (GRF-16302018, GRF-16303820, C6025-19G-A, SBI17SC14). M.A.-H. acknowledges the financial support from the Swedish Research Council (VR) under the project no. 2018-05393 and by the Arab-German Young Academy of Sciences and Humanities (AGYA). M.A.-H and D.C. acknowledge the financial support by the Megagrant 2020-220-08-6358 of the Government Council on Grants of the Russian Federation.
Располагается в коллекциях:Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC

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