TY - JOUR
T1 - Advanced optimization of standard head model with higher writing field and higher field gradient using 3-D ON/OFF method
AU - Takahashi, Norio
AU - Akiyama, Koji
AU - Miyagi, Daisuke
AU - Kanai, Yasushi
N1 - Funding Information:
ACKNOWLEDGMENT This work was supported by the Storage Research Consortium (SRC), Japan.
PY - 2008/6
Y1 - 2008/6
N2 - A magnetic recording head for 600 Gb/in2 with a gh recording head field, which is called a "standard model," is proposed after deep consideration by utilizing the numerical analysis. In order to improve the topology of the having a higher writing field and higher field gradient, the introduction of a 3-D topology optimization method, which is called the "ON/OFF method", is indispensable. In this paper, an advanced topology of the standard head model is obtained using the ON/OFF method. The recording field of 1.7 T and the field gradient of 0.0314 T/nm with low stray field of 0.1 T at the center of an adjacent track are obtained. The leakage flux in the adjacent track, which is the cause of the crosstalk, is reduced to 50%, which is the most significant improvement.
AB - A magnetic recording head for 600 Gb/in2 with a gh recording head field, which is called a "standard model," is proposed after deep consideration by utilizing the numerical analysis. In order to improve the topology of the having a higher writing field and higher field gradient, the introduction of a 3-D topology optimization method, which is called the "ON/OFF method", is indispensable. In this paper, an advanced topology of the standard head model is obtained using the ON/OFF method. The recording field of 1.7 T and the field gradient of 0.0314 T/nm with low stray field of 0.1 T at the center of an adjacent track are obtained. The leakage flux in the adjacent track, which is the cause of the crosstalk, is reduced to 50%, which is the most significant improvement.
KW - Finite-element analysis
KW - Magnetic recording head
KW - Topology optimization
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U2 - 10.1109/TMAG.2007.916487
DO - 10.1109/TMAG.2007.916487
M3 - Article
AN - SCOPUS:44049101439
VL - 44
SP - 966
EP - 969
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
SN - 0018-9464
IS - 6
M1 - 4527007
ER -