 Abstract amagnetic interfacial effect is observed due to the coupling between two surfaces of different materials. The studied interface is a non-colinear anti-ferromagnet and a quasi-ferromagnet. The effect is measured using the ferromagnetic resonance technique without and with electric current and unequivocally proved its existence. This article was authored by Wibson W. G. Silva, Sergio V. B. DeGiorgi and Jose Holanda.