TY - JOUR
T1 - Effective switching field distribution evaluation using saturation field in minor loop
AU - Hinata, Shintaro
AU - Saito, Shin
AU - Itagaki, Norikazu
AU - Takahashi, Migaku
N1 - Funding Information:
This work was supported in part by the Storage Research Consortium (SRC), in Japan and Japan Society for the Promotion of Science (JSPS) KAKENHI 22 2544.
PY - 2011/10
Y1 - 2011/10
N2 - A new method for evaluating the switching field distribution (SFD) in perpendicular magnetic recording media is proposed using the saturation magnetic field of a minor loop, Hsminor. In this method, the switching fields of focused reversal magnetic domains are measured with all magnetic moments in other domains saturated in the upward direction. Thus, the proposed SFD evaluation is not affected by variety of domain structure, and reveals tails of distribution. Using the proposed method, the SFD for various granular media was evaluated.
AB - A new method for evaluating the switching field distribution (SFD) in perpendicular magnetic recording media is proposed using the saturation magnetic field of a minor loop, Hsminor. In this method, the switching fields of focused reversal magnetic domains are measured with all magnetic moments in other domains saturated in the upward direction. Thus, the proposed SFD evaluation is not affected by variety of domain structure, and reveals tails of distribution. Using the proposed method, the SFD for various granular media was evaluated.
KW - Magnetic films
KW - magnetic hysteresis
KW - perpendicular recording
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U2 - 10.1109/TMAG.2011.2157330
DO - 10.1109/TMAG.2011.2157330
M3 - Article
AN - SCOPUS:80053489178
SN - 0018-9464
VL - 47
SP - 3951
EP - 3954
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
IS - 10
M1 - 6027838
ER -