Electron paramagnetism in antiferromagnets
Brazovskii S. A., Luk'yanchuk I. A., Ramazashvili R. R. Jr.
The nature of the degeneracy of band and localized electron states in an antiferromagnet and their behavior in a magnetic field are analyzed. Structural features have been found in the g-factor: At the edge of the magnetic Brillouin zone, a transverse field does not lift the degeneracy, while localized states at defects are completely nondegenerate.