Author: Girt, Erol
Author: Brucker, Charles
Author: Dobin, Alexander
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.
E. Girt, C. Brucker, A. Dobin, “Anti-ferromagnetically coupled soft underlayer”, Country USA, Patent #7,666,529, issued on Feb 23, 2010.
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