Design of Patterned Magnetic Recording Media for Tera-Bit Recording
نویسندگان
چکیده
منابع مشابه
Recording performances in perpendicular magnetic patterned media
We report on the recording performances and signal-to-noise ratio analyses of perpendicular magnetic bit-patterned media. Two different types of magnetic samples are investigated. They differ by the way that they were patterned (nano-imprint versus e-beam lithography) as well as their magnetic properties (Co/Pt multilayers and CoCrPt alloy are the recording layers). By using a contact read/writ...
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With the advent of the information age, the demand for larger storage capacity is ever increasing. However, the need to continue scaling conventional magnetic recording technologies to higher areal densities has led to physical and engineering limits which are difficult to overcome. New magnetic recording technologies are required. Bit-patterned media recording (BPMR) and heat-assisted magnetic...
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An adaptive feedforward controller design for tracking repeatable runout (RRO) in bit patterned media recording (BMPR) is proposed for single stage hard disk drives (HDD). The technique is based on modified filtered-x least mean squares (MFXLMS) algorithm with deterministic periodic input, and a novel variable step size that boosts both the convergence rate and the steady state error. Comprehen...
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In bit-patterned media recording (BPMR) channels, the inter-track interference (ITI) is extremely severe at ultra high areal densities, which significantly degrades the system performance. The partial-response maximum-likelihood (PRML) technique that uses an one-dimensional (1D) partial response target might not be able to cope with this severe ITI, especially in the presence of media noise and...
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Heat assisted magnetic recording HAMR is a potential solution to extend the limits of conventional magnetic recording. In HAMR, the heating of the recording medium is achieved with a near-field optical transducer. Although the literature suggests novel transducers, there is little consideration of the optical and thermal aspects of the magnetic medium. In this letter we suggest a recording medi...
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ژورنال
عنوان ژورنال: Journal of Society of Materials Engineering for Resources of Japan
سال: 2006
ISSN: 1884-6610,0919-9853
DOI: 10.5188/jsmerj.19.18