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Titolo:
Low noise design of perpendicular magnetic recording media
Autore:
Honda, N; Ouchi, K;
Indirizzi:
Akita Res Inst Adv Technol, Akita 0101623, Japan Akita Res Inst Adv Technol Akita Japan 0101623 nol, Akita 0101623, Japan
Titolo Testata:
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
fascicolo: 1-3, volume: 235, anno: 2001,
pagine: 289 - 296
SICI:
0304-8853(200110)235:1-3<289:LNDOPM>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
CO/PD MULTILAYER MEDIA;
Keywords:
perpendicular magnetic recording; medium noise; low noise design; thermal stability; M-H loop slope; double layered media;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Honda, N Akita Res Inst Adv Technol, 4-21 Sanuki, Akita 0101623, Japan Akita Res Inst Adv Technol 4-21 Sanuki Akita Japan 0101623 Japan
Citazione:
N. Honda e K. Ouchi, "Low noise design of perpendicular magnetic recording media", J MAGN MAGN, 235(1-3), 2001, pp. 289-296

Abstract

The basic comprehensive design for low noise perpendicular magnetic recording media is studied. High squareness in perpendicular M-H loop and reducedmagnetic domain size are the key properties for media with a low noise property. High squareness also favors thermal stability of recorded magnetization. Co-Cr based alloys are expected to be the candidate material for high recording density media far beyond 100 Gbit/in(2) recording in terms of thermal issue while alternative materials with higher anisotropy should be introduced for the media aimed at 1 Tbit/in(2). Reducing the domain size is the present issue for decreasing medium noise in double layered media. Although it is superficially contradictory to the low noise condition, the slope of the M-H loop should be kept steep to obtain a high recording performance. Paradigm shift from simple magnetic decoupling in the design of such media might be required. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/07/20 alle ore 18:28:35