A magnetic recording medium having a first magnetic layer, a spacer layer,
and a second magnetic layer, in this order, wherein the spacer layer
includes a non-magnetic layer and a thickness of the spacer layer is
selected to establish anti-ferromagnetic coupling between the first
magnetic layer and the second magnetic layer, and a thickness of both the
first and second magnetic layers are less than a critical thickness for
formation of stripe domains in the magnetic layers is disclosed.