State-of-the-Art Magnetic Hard Disk Drives

Magnetic recording has progressed dramatically over the last 50 years, with an increase of almost eight orders of magnitude in the amount of information stored per unit area of disk space.Two key enablers of this progress have been the recording medium and the read-back head.This article reviews the...

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Bibliographic Details
Published in:MRS bulletin 2006-05, Vol.31 (5), p.379-383
Main Authors: McFadyen, I.R., Fullerton, E.E., Carey, M.J.
Format: Article
Language:English
Subjects:
Disk drives
Giant magnetoresistance
layered
Magnetic materials
magnetic properties
Magnetic recording
Magnetic storage
magnetoresistance
Magnetoresistivity
memory
Multilayers
Read heads
Recording instruments
State-of-the-art reviews
Technical Feature
Thin films
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Summary:Magnetic recording has progressed dramatically over the last 50 years, with an increase of almost eight orders of magnitude in the amount of information stored per unit area of disk space.Two key enablers of this progress have been the recording medium and the read-back head.This article reviews the current state of the art in multilayer thin-film longitudinal recording media and giant magnetoresistive (GMR) read heads, with particular emphasis on the nanostructured magnetic materials that are key to today's high-performance hard disk drives.
ISSN:0883-7694
1938-1425
DOI:10.1557/mrs2006.97