Presentation 2014-06-13
High areal density recording of perpendicular magnetic recording using bit-patterned media
Naoki HONDA, Kiyoshi YAMAKAWA,
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Abstract(in English) Various methods for bit-patterned media were investigated to obtain high areal density recording beyond 2 Tdot/in^2. When the dot density is increased, increased switching field dispersion due to the magnetostatic interaction between the dots restricts the attainable recording density. But it was found that introduction of optimized exchange coupling between the dots or inclined magnetic anisotropy decreased the broadened switching field dispersion. Simulation analysis indicated the possibility of recording of an areal density beyond 2 T dot/in^2 by these methods. Moreover, with 3-layer ECC dot BPM with optimized parameters, it was also found that an areal density of 4 Tdot/in^2 would be realized using shingled recording.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) bit-patterned media / high areal density recording / exchange coupling / inclined magnetic anisotropy / 3-layer ECC dots
Paper # MR2014-6
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Committee MR
Conference Date 2014/6/5(1days)
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Registration To Magnetic Recording (MR)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) High areal density recording of perpendicular magnetic recording using bit-patterned media
Sub Title (in English)
Keyword(1) bit-patterned media
Keyword(2) high areal density recording
Keyword(3) exchange coupling
Keyword(4) inclined magnetic anisotropy
Keyword(5) 3-layer ECC dots
1st Author's Name Naoki HONDA
1st Author's Affiliation Faculty of Eng., Tohoku Institute of Technology()
2nd Author's Name Kiyoshi YAMAKAWA
2nd Author's Affiliation Akita Industrial Technology Center
Date 2014-06-13
Paper # MR2014-6
Volume (vol) vol.114
Number (no) 77
Page pp.pp.-
#Pages 6
Date of Issue