Perpendicular magnetic recording medium with epitaxial exchange coupling layer
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United States of America Patent
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Jul 26, 2016
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app pub date -
Nov 24, 2009
filing date -
Nov 24, 2009
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Abstract
FePt-based perpendicular magnetic recording (PMR) media including an epitaxial exchanged coupling layer (EECL) between FePtX magnetic recording layers. The degree of exchange coupling may be modulated by the EECL while the texture is transferred between the magnetic recording layers. With an EECL of proper composition and thickness, the FePt-based composite media has high anisotropy field and low saturation magnetic field.
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