The exchange bias in one interface between ferrimagnetic-antiferromagnetic orders is possible and it was studied in the literature. See the references:
[1] P.J. van der Zaag, R.M. Wolf, A.R. Ball, C. Bordel, L.F.
Feiner, R. Jungblut, J. Magn. Magn. Mater. 148 (1995)
346.
[2] W.C. Cain, M.H. Kryder, J. Appl. Phys. 67 (1990)