Applied Physics Letters · 2006 · 148 citations · 12 references
Natural SciencesElectrical EngineeringMaterials ScienceElectronic MaterialsMagnetic MaterialsStorage SystemsMagnetic DomainsMagnetic Recording MaterialsMagnetic Thin FilmsMemory DevicesStorage ReliabilityThin Film Magnetic PropertiesAreal Density EffectsBit-patterned MediaComposite TypesMagnetic PropertiesMagnetic RecordingMagnetic Recording MediaThin Film Recording MediaWriteability
A comprehensive analysis of the areal density potential of bit-patterned media recording shows that the recording performance is dominated by written-in errors. The statistical fluctuations of the magnetic properties and the locations of the individual bits lead to error probabilities so that some dots are either not recorded at all or cannot be recorded in the time window necessary to ensure synchronized writing. 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 5Tbits∕in.2 are analyzed.
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