Thermally induced error: Density limit for magnetic data storage

被引：57

作者：

Evans, R. F. L. ^{[1
]}

Chantrell, R. W. ^{[1
]}

Nowak, U. ^{[2
]}

Lyberatos, A. ^{[3
]}

Richter, H. -J. ^{[4
]}

机构：

[1] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England

[2] Univ Konstanz, Fachbereich Phys, D-78457 Constance, Germany

[3] Univ Crete, Dept Mat Sci, Iraklion 71003, Greece

[4] Hitachi Global Storage Technol, San Jose, CA 95135 USA

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 10期

关键词：

Magnetism - Hard disk storage - Magnetic recording;

D O I：

10.1063/1.3691196

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetic data storage is pervasive in the preservation of digital information, and the rapid pace of computer development requires ever more capacity. Increasing the storage density for magnetic hard disk drives requires a reduced bit size, previously thought to be limited by the thermal stability of the constituent magnetic grains. The limiting storage density in magnetic recording is investigated treating the writing of bits as a thermodynamic process. A "thermal writability" factor is introduced and it is shown that storage densities will be limited to 15 to 20 TBit/in(2) unless technology can move beyond the currently available write field magnitudes. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3691196]

引用

页数：3

共 9 条

[1]

[Anonymous], 1959, Superparamagnetism. J. Appl. Phys., DOI [DOI 10.1063/1.1735100, DOI 10.1063/1.2185850, 10.1063/1.2185850]

[2] Approximations to Brillouin functions for analytic descriptions of ferromagnetism [J].

Arrott, A. S. .

JOURNAL OF APPLIED PHYSICS, 2008, 103 (07)

[3] Thermal stability of recorded information at high densities [J].

Charap, SH ;

Lu, PL ;

He, YJ .

IEEE TRANSACTIONS ON MAGNETICS, 1997, 33 (01) :978-983

[4] Ultimate limits to thermally assisted magnetic recording [J].

McDaniel, TW .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2005, 17 (07) :R315-R332

[5] The transition from longitudinal to perpendicular recording [J].

Richter, H. J. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2007, 40 (09) :R149-R177

[6] Heat-assisted magnetic recording [J].

Rottmayer, Robert E. ;

Batra, Sharat ;

Buechel, Dorothea ;

Challener, William A. ;

Hohlfeld, Julius ;

Kubota, Yukiko ;

Li, Lei ;

Lu, Bin ;

Mihalcea, Christophe ;

Mountfield, Keith ;

Pelhos, Kalman ;

Peng, Chubing ;

Rausch, Tim ;

Seigler, Michael A. ;

Weller, Dieter ;

Yang, XiaoMin .

IEEE TRANSACTIONS ON MAGNETICS, 2006, 42 (10) :2417-2421

[7] All-optical magnetic recording with circularly polarized light [J].

Stanciu, C. D. ;

Hansteen, F. ;

Kimel, A. V. ;

Kirilyuk, A. ;

Tsukamoto, A. ;

Itoh, A. ;

Rasing, Th. .

PHYSICAL REVIEW LETTERS, 2007, 99 (04)

[8] Ultrafast Path for Optical Magnetization Reversal via a Strongly Nonequilibrium State [J].

Vahaplar, K. ;

Kalashnikova, A. M. ;

Kimel, A. V. ;

Hinzke, D. ;

Nowak, U. ;

Chantrell, R. ;

Tsukamoto, A. ;

Itoh, A. ;

Kirilyuk, A. ;

Rasing, Th. .

PHYSICAL REVIEW LETTERS, 2009, 103 (11)

[9] Thermal effect limits in ultrahigh-density magnetic recording [J].

Weller, D ;

Moser, A .

IEEE TRANSACTIONS ON MAGNETICS, 1999, 35 (06) :4423-4439

← 1 →