Magnetic memory device

A magnetic memory device includes a conductive line extended in a first direction, a magnetic track line provided on the conductive line and extended in the first direction, and a non-magnetic line provided on the magnetic track line and extended in the first direction. The magnetic track line includes a lower magnetic layer and an upper magnetic layer stacked on the conductive line, an exchange coupling layer between the lower and upper magnetic layers, and a spacer layer between the exchange coupling layer and the upper magnetic layer. The exchange coupling layer is in contact with a bottom surface of the spacer layer, and the lower and upper magnetic layers are antiferromagnetically coupled with each other by the exchange coupling layer.