Optimization of Soft Layer Uniaxial Anisotropy Gradient in Media for Microwave-Assisted Magnetic Recording

Exchange-coupled composite (ECC), notched, and graded anisotropy recording media were optimized for microwave-assisted magnetic recording at head-medium spacings from 4.5 to 14.5 nm. When the average value of uniaxial anisotropy ( K_{u} ) in the soft layer was low, notched media gave the best record...

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Veröffentlicht in:	IEEE transactions on magnetics 2022-04, Vol.58 (4), p.1-9
Hauptverfasser:	Greaves, Simon John, Itagaki, Ryo, Kanai, Yasushi
Format:	Artikel
Sprache:	eng
Schlagworte:	Anisotropic magnetoresistance Anisotropy Exchange-coupled composite (ECC) graded Magnetic heads Magnetic recording Magnetic storage Magnetism Magnetization Media media optimization microwave-assisted magnetic recording (MAMR) notched Optimization Recording instruments Saturation magnetization Signal to noise ratio Switches
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