Magnetic phase diagram of an extended Hubbard model at half filling: Possible application for strongly correlated iron pnictides

► We study correlated iron pnictides by Kotliar-Ruckenstein slave boson method. ► Large next-nearest-neighbor hopping contributes striped antiferromagnet in LaFeAsO. ► Bicollinear antiferromagnet in FeTe arises from large 3rd nearest-neighbor hopping. ► The triple points are found in various magnetic phase diagrams. ► Our paper provides an explanation on various magnetic groundstates of iron pnictides.