Comment on `Oxygen vacancy-induced magnetic moment in edge-sharing CuO$_{2}$ chains of Li$_{2}$CuO$_{2}$'
R. O. Kuzian,
R. Klingeler,
W. E. A. Lorenz
et al.
Abstract:In a recent work devoted to the magnetism of Li 2 CuO 2 , Shu et al. [New J. Phys. 19 (2017) 023026] have proposed a "simplified" unfrustrated microscopic model that differs considerably from the models refined through decades of prior work. We show that the proposed model is at odds with known experimental data, including the reported magnetic susceptibility χ(T ) data up to 550 K. Using an 8 th order hightemperature expansion for χ(T ), we show that the experimental data for Li 2 CuO 2 are consistent with … Show more
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