Using a group-theoretical approach, constitutive tensor for a new material
composed of omega particles embedded in a ferrite are calculated and discus
sed. The analysis of the tensors is based on the decomposition of them into
simpler forms. A comparison of these tensors with the known ones for chiro
ferrites is made. The constitutive tensors for some modifications of the ch
iro- and omegaferrites are calculated as well. (C) 2001 John Wiley & Sons,
Inc.