DocumentCode :
73127
Title :
Exploratory Experiments in Recording on Sputtered Magnetic Tape at an Areal Density of 148 Gb/in 
Author :
Tachibana, J. ; Endo, T. ; Hiratsuka, R. ; Inoue, S. ; Berman, D. ; Jubert, P.-O. ; Topuria, T. ; Poon, C. ; Imaino, W.
Author_Institution :
Sony Corp., Tagajo̅, Japan
Volume :
50
Issue :
11
fYear :
2014
fDate :
Nov. 2014
Firstpage :
1
Lastpage :
6
Abstract :
A sputter deposited CoPtCr-SiO2 perpendicular recording media with excellent orientation was successfully grown on a thin polyamide film. Using 32-channel GMR tape heads and advanced hard-disk drive heads, the recording performance and durability of this media was investigated. These studies demonstrated an unprecedented broadband signal-to-noise ratio of 17 dB at 896 kb/in using a 77 nm-wide TMR reader, corresponding to an estimated 148 Gb/in2 recording density, and provided a preliminary assessment of durability exceeding current tape media specifications.
Keywords :
chromium alloys; cobalt alloys; disc drives; giant magnetoresistance; hard discs; magnetic heads; magnetic recording; platinum alloys; polymer films; silicon compounds; sputter deposition; tape recorders; thin film devices; tunnelling magnetoresistance; 32-channel GMR tape; CoPtCr-SiO2; TMR reader; advanced hard-disk drive head; areal density; noise figure 17 dB; size 77 nm; sputter deposited perpendicular magnetic tape recording media; thin polyamide film; Magnetic hysteresis; Magnetic resonance imaging; Media; Perpendicular magnetic recording; Signal to noise ratio; Substrates; Magnetic tape media; magnetic tape recording; sputter deposited media;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2014.2319197
Filename :
6971770
Link To Document :
