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Uspekhi Fizicheskikh Nauk, 2025, Volume 195, Number 7, Pages 695–711
DOI: https://doi.org/10.3367/UFNr.2024.09.039748 (Mi ufn15935) 		 
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Neutron magnetic form factor in studies of f-electron instability

P. A. Alekseevab, V. N. Lazukova, P. S. Savchenkovab

a National Research Centre Kurchatov Institute, Moscow
b National Research Nuclear University MEPhI
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DOI: https://doi.org/10.3367/UFNr.2024.09.039748
Abstract: The main results obtained in measurements of neutron magnetic form factors for rare earth systems with strong electronic correlations are presented. It is shown that in some cases neutron spectroscopy methods can provide information on the valence unstable state in the f-electron system, which is unique as regards the development of adequate physical concepts. Studies of the magnetic form factor in intermediate-valence systems based on Sm (($\rm SmB_6$, SmS) and Eu ($\rm EuCu_2Si_2$ type) and their impact on the shaping of a realistic description of the physical nature of the intermediate valence state are discussed in detail.
Keywords: neutron spectroscopy, intermediate valence, magnetic form factor, strongly correlated electron systems
Funding agency Grant number
Ministry of Science and Higher Education of the Russian Federation 075-15-2021-1352
The work was supported by the Ministry of Science and Higher Education of the Russian Federation (Agreement No. 075-15-2021-1352).
Received: July 2, 2024
Revised: September 4, 2024
Accepted: September 9, 2024
English version:
Physics–Uspekhi, 2025, Volume 68, Issue 7, Pages 653–667
DOI: https://doi.org/10.3367/UFNe.2024.09.039748
Bibliographic databases:
Document Type: Article
PACS: 61.05.F-, 61.66.Dk, 75.10.-b, 75.30.Mb, 75.40.Gb
Language: Russian
Citation: P. A. Alekseev, V. N. Lazukov, P. S. Savchenkov, “Neutron magnetic form factor in studies of f-electron instability”, UFN, 195:7 (2025), 695–711; Phys. Usp., 68:7 (2025), 653–667
Citation in format AMSBIB
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\by P.~A.~Alekseev, V.~N.~Lazukov, P.~S.~Savchenkov
\paper Neutron magnetic form factor in studies of f-electron instability
\jour UFN
\yr 2025
\vol 195
\issue 7
\pages 695--711
\mathnet{http://mi.mathnet.ru/ufn15935}
\crossref{https://doi.org/10.3367/UFNr.2024.09.039748}
\adsnasa{https://adsabs.harvard.edu/cgi-bin/bib_query?2025PhyU...68..653A}
\transl
\jour Phys. Usp.
\yr 2025
\vol 68
\issue 7
\pages 653--667
\crossref{https://doi.org/10.3367/UFNe.2024.09.039748}
\scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-105013789370}
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