Critical behavior of spinel vanadate MnV1.95Al0.05O4

► Critical behavior of Al-doped MnV2O3 is studied by the magnetization measurements. ► Critical behavior of MnV1.95Al0.05O4 belongs to the prediction of the mean-field model with long range interaction. ► Ferromagnetism of MnV1.95Al0.05O4 is mainly related to the long range ferromagnetic interaction of Mn ions.