TY - JOUR
T1 - Micromagnetic recording field analysis of a single-pole-type head for 1-2 Tbit/in2
AU - Kanai, Yasushi
AU - Hirasawa, Kazunori
AU - Tsukamoto, Toshio
AU - Yoshida, Kazuetsu
AU - Greaves, Simon John
AU - Muraoka, Hiroaki
N1 - Funding Information:
This work was supported in part by a Grant in Aid for the Japan Society for the Promotion of Science (#18,560,352) and SRC, Japan. The authors would like to thank the members of Storage Research Consortium (SRC), Japan. The authors would also like to thank the Central Research Laboratory, Hitachi, Ltd., for the use of LLG micromagnetic software, and JRI Solutions, Ltd., for the use of the JMAG-Studio, FEM Software.
PY - 2008/11
Y1 - 2008/11
N2 - Dynamic recording fields of single-pole-type (SPT) heads, having main pole tip dimensions of 25 × 25 nm at the air bearing surface (ABS), were investigated using a Landau-Lifshitz-Gilbert (LLG) micromagnetic analysis. The recording performance in combination with continuous media and bit-patterned media (BPM) was discussed for areal densities of 1-2 Tbit/in2 using the results of LLG micromagnetic media recording simulations. Trailing and side shields were indispensable and the switching speed of the SPT head did not deteriorate on reducing the area of the main pole tip. The advantage of BPM over continuous media was clear with regard to obtaining a higher areal density.
AB - Dynamic recording fields of single-pole-type (SPT) heads, having main pole tip dimensions of 25 × 25 nm at the air bearing surface (ABS), were investigated using a Landau-Lifshitz-Gilbert (LLG) micromagnetic analysis. The recording performance in combination with continuous media and bit-patterned media (BPM) was discussed for areal densities of 1-2 Tbit/in2 using the results of LLG micromagnetic media recording simulations. Trailing and side shields were indispensable and the switching speed of the SPT head did not deteriorate on reducing the area of the main pole tip. The advantage of BPM over continuous media was clear with regard to obtaining a higher areal density.
KW - Bit-patterned media (BPM)
KW - Landau-Lifshitz-Gilbert (LLG) micromagnetic analysis
KW - Perpendicular magnetic recording
KW - Single-pole-type (SPT) heads
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U2 - 10.1109/TMAG.2008.2002409
DO - 10.1109/TMAG.2008.2002409
M3 - Article
AN - SCOPUS:71049148828
SN - 0018-9464
VL - 44
SP - 3609
EP - 3612
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
IS - 11 PART 2
ER -