Abstract
The superhyperfine structure of the EPR spectra of impurity Nd3+ and U3+ ions in LiYF4, LiLuF4, and LiTmF4 double-fluoride single crystals has been observed and discussed. In LiYF4: Nd (g | = 1.987, g ⊥ = 2.554) and LiTmF4: Nd, the superhyperfine structure is observed at the orientation of the external magnetic field B in parallel to the c axis of the crystals and consists of nine components with a splitting of ∼15.4 MHz. In LiYF4: U (g | = 1.149, g ⊥ = 2.508) and LiLuF4: U, the superhyperfine structure is observed at both B | c and B ⊥ c and consists of nine and eleven components, respectively, with a splitting of ∼21.5MHz. It should be noted that the resolution of the superhyperfine structure of the EPR spectrum of LiLuF4: U3+ becomes significantly higher with a deviation from the orientation B ⊥ c.
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Original Russian Text © L.K. Aminov, A.A. Ershova, S.L. Korableva, I.N. Kurkin, B.Z. Malkin, A.A. Rodionov, 2011, published in Fizika Tverdogo Tela, 2011, Vol. 53, No. 11, pp. 2129–2132.
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Aminov, L.K., Ershova, A.A., Korableva, S.L. et al. Superhyperfine structure of the EPR spectra of Nd3+ and U3+ ions in LiRF4 (R = Y, Lu, Tm) double fluorides. Phys. Solid State 53, 2240–2243 (2011). https://doi.org/10.1134/S1063783411110035
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DOI: https://doi.org/10.1134/S1063783411110035