Corrigendum to “Investigation of structural and physical properties of Eu³⁺ ions substituted Ni_0.4Cu_0.2Zn_0.4Fe₂O₄ spinel ferrite nanoparticles prepared via sonochemical approach” [Res. Phys. 17 (2020) 103061](S2211379720304630)(10.1016/j.rinp.2020.103061)

Following publication, the authors regret to have discovered an error in Figure 2 in the original published version of this article (https://doi.org/10.1016/j.rinp.2020.103061) where some SEM images were inadvertently duplicated within the same article. Fortunately, this unintended error had no impact on any of the other results. The updated Figure 2 is presented below. [Formula presented] Fig. 2. SEM images of Ni_0.4Cu_0.2Zn_0.4Eu_xFe_2−xO₄ (x = 0.00, 0.02, 0.04, 0.06, 0.08, and 0.10) SNPs. The authors apologize for any inconvenience caused by this inadvertent error.