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Recording on Bit-Patterned Media at Densities of 1 Tb/in ^2 and Beyond

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11 Author(s)
H. J. Richter ; Seagate Technol., Fremont, CA ; A. Y. Dobin ; O. Heinonen ; K. Z. Gao
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We present a comprehensive analysis of the areal density potential of a bit-patterned media recording. The recording performance is dominated by written-in errors rather than traditional signal-to-noise considerations. Written-in errors are caused by statistical fluctuations of the magnetic properties and the locations of the individual dots. The highest areal densities are obtained with a combination of a pole head, a soft magnetic underlayer, and a storage medium of the composite type. Areal density scenarios of up to 5 Tb/in2 are analyzed

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IEEE Transactions on Magnetics  (Volume:42 ,  Issue: 10 )