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Split-Pole Write Head for Thermally Assisted Magnetic Recording

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4 Author(s)
Greaves, S. ; RIEC, Tohoku Univ., Sendai, Japan ; Jinbo, Y. ; Kanai, Y. ; Muraoka, H.

A split-pole write head design for thermally assisted recording is presented. The split-pole design allows the heat source to be located anywhere along the down-track axis. The recording performance of the head is evaluated using micromagnetic simulations and compared to a conventional design. The effect of Curie temperature distributions in the recording medium is investigated and found to be particularly detrimental to recording performance under some circumstances.

Published in:

Magnetics, IEEE Transactions on  (Volume:47 ,  Issue: 10 )