Results 241 to 250 of about 18,234,848 (269)
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Analysis of recording in bit patterned media with parameter distributions
Journal of Applied Physics, 2009Recording in bit patterned media (BPM) requires strict synchronization of the signal misregistration time. A scheme is presented based on micromagnetic simulation of a single element which allows defining a writing window (WW) permitting for synchronized recording. The WW behavior for random distributions of the anisotropy field is studied.
Boris Livshitz +3 more
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Modeling for write synchronization in bit patterned media recording
Journal of Applied Physics, 2012Bit patterned media recording (BPMR) is a contender for next generation technology after conventional granular magnetic recording (CGMR) can no longer sustain the continued areal density growth. BPMR has several technological hurdles that need to be overcome, among them is solving the problem of write synchronization.
Maria Yu Lin +5 more
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ECS Meeting Abstracts, 2008
Abstract not Available.
Hiroaki Muraoka, Yoshihisa Nakamura
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Abstract not Available.
Hiroaki Muraoka, Yoshihisa Nakamura
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Inter-symbol interference compensation for bit patterned media recording storage
2015 International Conference on Information Networking (ICOIN), 2015Bit patterned media recording is one of the candidates for the next generation magnetic data storage. When the storage density is increased, the space between the islands narrows. Therefore, it has inter-symbol interference (ISI) in all directions, unlike in the serially in-and-out storage systems.
Seongkwon Jeong +3 more
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Capped bit patterned media for high density magnetic recording
Journal of Applied Physics, 2009A capped composite patterned medium design is described which comprises an array of hard elements exchange coupled to a continuous cap layer. The role of the cap layer is to lower the write field of the individual hard element and introduce ferromagnetic exchange interactions between hard elements to compensate the magnetostatic interactions.
Shaojing Li +5 more
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Heat-Assisted Magnetic Recording on Dual Structure Bit Patterned Media
IEEE Transactions on Magnetics, 2021Heat-assisted magnetic recording on bit patterned media dots with two magnetic structures is modeled. If the magnetic structures have different Curie temperatures two bits of information can be stored in each dot by writing at high and low temperatures. The areal density capability of the dual structure media was calculated and found to be in excess of
Hikaru Yamane +2 more
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Micromagnetic specifications for recording self-assembled bit-patterned media
Journal of Applied Physics, 2012A design including exchange coupled composite (ECC) bits in hexagonal arrays and a multi-pole write head is proposed to meet the requirement of 9.7 × 10−4 bit error rate, 4 nm magnetic fly height, 5% switching field distribution, 5% synchronization error, and 5% jitter error to achieve 2.9 Tbits/in.2 bit-patterned recording.
Yan Dong, Yao Wang, R. H. Victora
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Performance of Bit-Patterned Media Recording According to Island Patterns
2018 IEEE International Magnetics Conference (INTERMAG), 2018To increase a density in hard disk drive, bit patterned media recording (BPMR) is regarded as a promising candidate for the next generation storage system. Reduction of spacing between bit islands is essential to increase the density in BPMR but causes inter-symbol interference (ISI) and inter-track interference (ITI).
Seongkwon Jeong, Juri Kim, Jaejin Lee
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Modeling, detection, and LDPC codes for bit-patterned media recording
2010 IEEE Globecom Workshops, 2010In this paper, we present a thorough and comprehensive study for bit-patterned media recording (BPMR), from a signal processing and coding perspective. We first propose a recording-physics-based generic channel model for BPMR, which includes all the major characteristics and impairments of the system.
Kui Cai +5 more
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Iterative channel detection with LDPC product code for bit patterned media recording
2017 IEEE International Magnetics Conference (INTERMAG), 2017Because of the explosion in data growth, the requirement for high-density storage systems has increased. Bit-patterned media recording (BPMR) is a candidate for the next-generation magnetic recording systems, and its many advantages facilitate the achievement of recording densities of 1 Tb/in2 and beyond. In BPMR, each information bit is represented by
Seongkwon Jeong, Jaejin Lee
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