Review on Recent Developments of Perpendicular Recording Media

Kazuhiro OUCHI

Review on Recent Developments of Perpendicular Recording Media

Kazuhiro OUCHI

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Physical limitation of the conventional longitudinal media has been actualized recent days according to the dramatic increase in storage area density with a growth ratio of more than 100%/year so that perpendicular recording is being watched with keen interest. Development in perpendicular recording media from the proposal to actual usage for HDD system are reviewed in terms of historical back ground, recent media design and preparation, new media proposal and recording performances, mainly basing on the author's results. In case of perpendicular media, physical limit of thermal stability could not be so serious but media noise reduction with sophisticated preparation method has been research topics as the breakthrough for the commercialization. Improvements on Co-Cr system alloy media were made by introducing proper additives and under layers so that a high storage density over 60 Gb/inch² has been achieved. Far higher density up to 1 Tera bits/ inch² is expected to be possible by using newly proposed Co/Pd multilayer or Fe-Pt metal compound films. It is prospected that breakthrough for the future progresses would be mechanical issues such as head medium spacing and tribology problems rather than magnetic properties of media.

Publication: IEICE TRANSACTIONS on Electronics Vol.E84-C No.9 pp.1121-1131

Publication Date: 2001/09/01

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Type of Manuscript: Special Section INVITED PAPER (Special Issue on Selected Papers from the 5th Asian Symposium on Information Storage Technology)

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Kazuhiro OUCHI, "Review on Recent Developments of Perpendicular Recording Media" in IEICE TRANSACTIONS on Electronics, vol. E84-C, no. 9, pp. 1121-1131, September 2001, doi: .
Abstract: Physical limitation of the conventional longitudinal media has been actualized recent days according to the dramatic increase in storage area density with a growth ratio of more than 100%/year so that perpendicular recording is being watched with keen interest. Development in perpendicular recording media from the proposal to actual usage for HDD system are reviewed in terms of historical back ground, recent media design and preparation, new media proposal and recording performances, mainly basing on the author's results. In case of perpendicular media, physical limit of thermal stability could not be so serious but media noise reduction with sophisticated preparation method has been research topics as the breakthrough for the commercialization. Improvements on Co-Cr system alloy media were made by introducing proper additives and under layers so that a high storage density over 60 Gb/inch² has been achieved. Far higher density up to 1 Tera bits/ inch² is expected to be possible by using newly proposed Co/Pd multilayer or Fe-Pt metal compound films. It is prospected that breakthrough for the future progresses would be mechanical issues such as head medium spacing and tribology problems rather than magnetic properties of media.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e84-c_9_1121/_p

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@ARTICLE{e84-c_9_1121,
author={Kazuhiro OUCHI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Review on Recent Developments of Perpendicular Recording Media},
year={2001},
volume={E84-C},
number={9},
pages={1121-1131},
abstract={Physical limitation of the conventional longitudinal media has been actualized recent days according to the dramatic increase in storage area density with a growth ratio of more than 100%/year so that perpendicular recording is being watched with keen interest. Development in perpendicular recording media from the proposal to actual usage for HDD system are reviewed in terms of historical back ground, recent media design and preparation, new media proposal and recording performances, mainly basing on the author's results. In case of perpendicular media, physical limit of thermal stability could not be so serious but media noise reduction with sophisticated preparation method has been research topics as the breakthrough for the commercialization. Improvements on Co-Cr system alloy media were made by introducing proper additives and under layers so that a high storage density over 60 Gb/inch² has been achieved. Far higher density up to 1 Tera bits/ inch² is expected to be possible by using newly proposed Co/Pd multilayer or Fe-Pt metal compound films. It is prospected that breakthrough for the future progresses would be mechanical issues such as head medium spacing and tribology problems rather than magnetic properties of media.},
keywords={},
doi={},
ISSN={},
month={September},}

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TY - JOUR
TI - Review on Recent Developments of Perpendicular Recording Media
T2 - IEICE TRANSACTIONS on Electronics
SP - 1121
EP - 1131
AU - Kazuhiro OUCHI
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E84-C
IS - 9
JA - IEICE TRANSACTIONS on Electronics
Y1 - September 2001
AB - Physical limitation of the conventional longitudinal media has been actualized recent days according to the dramatic increase in storage area density with a growth ratio of more than 100%/year so that perpendicular recording is being watched with keen interest. Development in perpendicular recording media from the proposal to actual usage for HDD system are reviewed in terms of historical back ground, recent media design and preparation, new media proposal and recording performances, mainly basing on the author's results. In case of perpendicular media, physical limit of thermal stability could not be so serious but media noise reduction with sophisticated preparation method has been research topics as the breakthrough for the commercialization. Improvements on Co-Cr system alloy media were made by introducing proper additives and under layers so that a high storage density over 60 Gb/inch² has been achieved. Far higher density up to 1 Tera bits/ inch² is expected to be possible by using newly proposed Co/Pd multilayer or Fe-Pt metal compound films. It is prospected that breakthrough for the future progresses would be mechanical issues such as head medium spacing and tribology problems rather than magnetic properties of media.
ER -