Collinear ferromagnetism with reduced moment length in kagome magnet
Phys. Rev. B 113, 214410 – Published 2 June, 2026
DOI: https://doi.org/10.1103/9pvl-33xc
Abstract
We determine the magnetic ground state of the kagome lattice magnet by single-crystal neutron diffraction, supported by experiments with polarized neutrons. We identify this material as a collinear ferromagnet (“hex-FM”) with uniform moment length and ordering vector , in contrast to a previous, seminal report that proposed unequal moment lengths on two Nd sites, here called the “ortho-FM” state. Our analysis of the flipping ratio in polarized neutron scattering is consistent with the hex-FM state. The results provide a microscopic basis for understanding the large fluctuation-induced Hall and Nernst responses near , as previously reported for .
