Title :
11.5 Gb/in2 recording using spin-valve heads in tape systems
Author :
Ozue, Tadashi ; Kondo, Masayuki ; Soda, Yutaka ; Fukuda, Shinich ; Onodera, Seiichi ; Kawana, Takahiro
Author_Institution :
Core Technol. Dev. Center, Sony Corp. Core Technol., Yokohama, Japan
Abstract :
We have investigated recording at densities higher than 4.5 Gb/in2 in tape systems using spin-valve heads. We report the signal-to-noise ratio at areal recording densities of 4.5 Gb/in2 and 11.5 Gb/in2 on low-noise obliquely metal evaporated (ME) tapes. Also, we studied an electrostatic discharge failure of giant magnetoresistive heads on ME tape. The results indicate the feasibility of an areal density of 11.5 Gb/in2 in a helical-scan tape system.
Keywords :
cobalt; cobalt compounds; digital magnetic recording; electrostatic discharge; giant magnetoresistance; magnetic heads; magnetic recording noise; magnetic tapes; reliability; spin valves; Co-CoO; ESD failure; GMR heads; SNR; electrostatic discharge failure; giant magnetoresistive heads; head reliability; helical-scan system; low-noise tapes; magnetic tape systems; obliquely metal evaporated tapes; signal-to-noise ratio; spin-valve heads; Anisotropic magnetoresistance; Coercive force; Disk recording; Electronic mail; Electrostatic discharge; Giant magnetoresistance; Magnetic heads; Signal to noise ratio; Spin valves; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.988925
