Quasi-two-dimensionality driven by Jahn-Teller distortion in the ferromagnetic insulator CsMnF4: Structural and magnetic insights from experiment and theoryRemoveAnuroopa Behatha, Bryce G. Mullens, Alexander K. L. Yuen, Caleb J. Bennett, Matilde Saura-Múzquiz, Sean D. Injac, Maxim Avdeev, Wen Liang Tan, Brendan J. Kennedy, A. C. Garcia-Castro, G. Vaitheeswaran, and V. KanchanaPhys. Rev. B 113, 134425 (2026)