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Superhyperfine structure of EPR spectra in LiLuF 4:U 3+ and LiYF 4:Yb 3+ single crystals

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dc.contributor.author Aminov L.
dc.contributor.author Ershova A.
dc.contributor.author Zverev D.
dc.contributor.author Korableva S.
dc.contributor.author Kurkin I.
dc.contributor.author Malkin B.
dc.date.accessioned 2018-09-18T20:10:44Z
dc.date.available 2018-09-18T20:10:44Z
dc.date.issued 2008
dc.identifier.issn 0937-9347
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/137305
dc.description.abstract Electron paramagnetic resonance (EPR) spectra of doped paramagnetic crystals LiLuF 4:U 3+ and LiYF 4:Yb 3+ have been investigated at a frequency of about 9.42 GHz in the temperature range of 10-20 K. The U 3+ ion spectrum is characterized by g-factors g ∥ = 1.228 and g ⊥ = 2.516, and contains the hyperfine structure due to the 235U isotope with nuclear spin I = 7/2 and natural abundance of 0.71%. The observed hyperfine interaction constants are A ∥ = 81 G and A ⊥ = 83.8 G. Moreover, the spectrum reveals the well-resolved superhyperfine structure (SHFS) due to two groups of four fluorine ions forming the nearest surrounding of the U 3+ ion. This SHFS contains up to nine components with the spacing between components being about 12.7 G. The SHFS is observed also in the EPR spectrum of the LiYF 4:Yb 3+ crystal; up to 17 components with spacing of about 3.7 G may be traced. Some parameters of the effective Hamiltonian of the SHF interaction are estimated, the contribution of covalent bonding of f-electrons with ligands into these parameters is discussed. © 2008 Springer-Verlag.
dc.relation.ispartofseries Applied Magnetic Resonance
dc.title Superhyperfine structure of EPR spectra in LiLuF 4:U 3+ and LiYF 4:Yb 3+ single crystals
dc.type Article
dc.relation.ispartofseries-issue 4
dc.relation.ispartofseries-volume 33
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 351
dc.source.id SCOPUS09379347-2008-33-4-SID58449137413


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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