Neutron scattering to confirm the reconstructed altermagnetic order in doped CrSb

We propose single-crystal neutron diffraction experiments on Mn-doped CrSb to investigate the reconstruction of altermagnetic order and its role in generating spontaneous anomalous Hall effects (AHE). CrSb is a recently identified altermagnet whose symmetry forbids spontaneous AHE; however, systematic Mn doping induces both spontaneous AHE and complex magnetization behavior, suggesting a doping-driven change in magnetic point group symmetry. Our transport and magnetization data point to a nontrivial magnetic structure, especially in the low-doped regime. Using the WISH diffractometer, we aim to resolve the zero- and high-field magnetic structures along different field directions to uncover the microscopic origin of the AHE and track the evolution of altermagnetism in this system.