Incomplete softening of the antiferromagnetic resonance mode at the spin-reorientation transition in multiferroic GdFe3(BO3)4RemoveI. N. Khoroshiy, S. A. Skorobogatov, S. E. Nikitin, I. A. Gudim, V. R. Titova, and A. I. PankratsPhys. Rev. B 112, 224421 (2025)
