Narrow-track perpendicular write heads |
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| Authors: | Yasushi Kanai Kiyoshi Yamakawa |
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| Institution: | a Department of Information and Electronics Engineering, Niigata Institute of Technology, 1719 Fujihashi, Kashiwazaki-shi, Niigata-ken 945-1195, Japan
b AIT, Akita Prefectural R&D Center, 4-21 Sanuki, Araya, Akita-shi, Akita-ken 010-1623, Japan 010-1623, Japan |
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| Abstract: | Narrow-track perpendicular write heads are reviewed. Because of the strong magnetic interaction between the write head and double-layered medium in perpendicular recording, various types of media are also considered. Current technology is discussed to illustrate design issues; then, for areal densities beyond 1 Tb/in2, future technological requirements, including single-pole-type (SPT) heads for discrete track and bit-patterned media, are examined based on numerical simulations. |
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| Keywords: | Perpendicular magnetic recording Single-pole-type heads Planer heads Tapered main pole Finite-element methods Micromagnetic analysis |
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