Abstract
Temperature dependence of anisotropic tensor susceptibility (ATS) scattering intensities of GdB4 were measured near L-edges of Gd to investigate how spin ordering affects ATS. ATS scattering intensities for L2- and L3-edges show different temperature dependence below TN. At L3-edge the intensities reflect spin order parameter while intensities at L2-edge do not show noticeable change. The difference is explained in terms of spin-orbit coupling and isotropic distribution of spin-polarized 5d states of Gd ions. Above TN ATS scattering intensities demonstrate that thermal motions enhance charge distribution anisotorpy of Gd 5d states in paramagnetic phase.
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Hwang, S.Y., Cho, BG., Koo, TY. et al. Resonant X-ray Scattering Study of Anisotropic Charge Distribution of Gd Ions in GdB4. J. Korean Phys. Soc. 76, 537–540 (2020). https://doi.org/10.3938/jkps.76.537
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DOI: https://doi.org/10.3938/jkps.76.537