Patterned Media

Hughes, G.F.

doi:10.1007/978-3-642-56657-8_7

Cited by 15 publications

(13 citation statements)

References 59 publications

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“…2 recording. In the case of recording with a patterned medium, the noise due to the irregularity of the pattern has to be taken into account instead of the medium noise due to grains.…”

Section: Reproduced Waveform and Bit Error Rate Analysis Of A Patternmentioning

confidence: 98%

“…2 and higher. 1,2 Patterned media has advantages over conventional continuous media in ͑1͒ being free from media noise due to the irregularity of the crystal grain configurations, and ͑2͒ allowing a larger switching unit of a single island bit, rather than a crystal grain, resulting in higher stability of recorded information against thermal excitation.…”

Section: Introductionmentioning

confidence: 93%

“…These parameters were determined based on a projection of technological trend for continuous perpendicular medium system at 1 Tb/ in. 2 The same flying height and medium thickness parameters were used for patterned media to simplify the comparison. The read track width for the continuous media, which corresponds to the read element width, was assumed to be 0.7 times the track pitch or 36 nm, which was twice that of the patterned media, for which the read element width was assumed to be the same as the land width, resulting in a factor 2 advantage in terms of the signal amplitude for the continuous medium over the patterned medium.…”

Section: Patterned Media and R/w Channel Modelmentioning

confidence: 99%

“…2 The bit aspect ratio BPI/TPI was set to two for the patterned medium and four for the continuous medium, since the patterned medium is supposed to have an optimum design at a lower bit aspect ratio. Thus the performance of a patterned medium with 707 kTPI and 1414 kBPI was compared with that of a continuous medium with 500 kTPI and 2000 kBPI.…”

Section: Patterned Media and R/w Channel Modelmentioning

confidence: 99%

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Reproduced waveform and bit error rate analysis of a patterned perpendicular medium R/W channel

Suzuki

Saito

Aoi

et al. 2005

Journal of Applied Physics

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“…2 recording. In the case of recording with a patterned medium, the noise due to the irregularity of the pattern has to be taken into account instead of the medium noise due to grains.…”

Section: Reproduced Waveform and Bit Error Rate Analysis Of A Patternmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 93%

Section: Patterned Media and R/w Channel Modelmentioning

confidence: 99%

Section: Patterned Media and R/w Channel Modelmentioning

confidence: 99%

See 2 more Smart Citations

Reproduced waveform and bit error rate analysis of a patterned perpendicular medium R/W channel

Suzuki

Saito

Aoi

et al. 2005

Journal of Applied Physics

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“…Although a low substrate temperature for film formation and a high perpendicular magnetic anisotropy are the advantages with multilayer magnetic films, they are not easy to be tuned for application to granular-type perpendicular media. The multilayer films are considered to be more suitable for the bit patterned media which involve nanometer scale fabrications using chemical etching, ion-beam, or other sophisticated techniques [148][149][150] .…”

Section: Magnetic Multilayer Filmsmentioning

confidence: 99%

Development of Media Nanostructure for Perpendicular Magnetic Recording

Futamoto

Ohtake

2017

J. Magn. Soc. Jpn.

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The review covers the research and development of perpendicular media nanostructure focusing on the recording layer. The recording layer material includes the Co-alloys with hcp structure, the magnetic multilayers, and the alloys with ordered structures that have high magneto-crystalline anisotropies (Ku). The technologies of underlayer or interlayer for aligning the easy magnetization axis of magnetic crystal grain perpendicular to the film plane are briefly reviewed including the high Ku magnetic materials for future recording media.Observations of compositional and magnetization structures in sub-µm scale have played important roles in improving the recording layer. Typical data on these characteristics are explained in relation to the media structure improvements. Considering that high Ku magnetic materials will be employed in future recording media, basic experimental results related in controlling the easy magnetization axis and in keeping the surface flatness of L10-ordered magnetic materials are explained. Future possibilities for increasing the areal density beyond 1 Tb/in 2 by improving the magnetic material and the nanostructure of recording layer are also discussed.

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Nanotechnology advances and applications in information storage

Juang

Bogy

2005

Microsyst Technol

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A brief review of some applications of nanotechnology to information storage is given with the focus on self-assembled nanoporous alumina templates for patterned media.Ordered nanoporous alumina templates were fabricated by self-assembly technology. A two-step anodization process was also carried out to obtain templates with pores perpendicular to the substrate without removing the aluminum and barrier layer. Polycrystalline structure was observed with a grain size of about 2 lm in which the pores were almost perfect hexagonally ordered. The pore arrays exhibit different orientation along the boundaries of neighboring grains. Nanopatterning implemented by electron-beam lithography demonstrates the ability to write pores forming concentric circles with pore diameter as small as 50 nm.

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Patterned Media

Cited by 15 publications

References 59 publications

Reproduced waveform and bit error rate analysis of a patterned perpendicular medium R/W channel

Reproduced waveform and bit error rate analysis of a patterned perpendicular medium R/W channel

Development of Media Nanostructure for Perpendicular Magnetic Recording

Nanotechnology advances and applications in information storage

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