High-resolution neutron diffraction determination of noncollinear antiferromagnetic order in the honeycomb magnetoelectric Fe4Nb2O9RemoveRaktim Datta, Kapil Kumar, Dong Gun Oh, Dongwook Kim, Rahul Goel, Nara Lee, Ara Go, Young Jai Choi, Valery Kiryukhin, and Sungkyun ChoiPhys. Rev. B 112, 134439 (2025)