Table 1 Candidate tetragonal ferromagnetic topological semimetals and axion insulators.

N/A, not available.

MaterialSpace groupMaterials Project IDEnergy above hull (meV/atom)4
CuFe2O4I41/amdN/AN/A1
CrO2P42/mnmmp-19177633
Sr3CaFe4O12*P4/mmmmp-1076424143
Mn3O4F2*P42/mnmmp-780777762
Sr2La2Mn4O11I4/mmmmp-1218776652
Mn2PO5*I41/amdmp-754106271
Sr5Mn5O13P4/mmp-60388822
CaV2O4*I41/amdmvc-10887312
CdNi2O4*I41/amdmp-75634102
Cr2TeO6P42/mnmmp-2135502
CuCr2O4I41/amdmp-1103973131
LiNiO2*I41/amdmp-770635172
VMg2O4*I41/amdN/AN/A2

*Theoretical materials that have not yet been experimentally synthesized.