TY - JOUR
T1 - A Mechanism for Enhancing the Reproduced Voltage on the Ring-Type-Head/Electroless-Deposited Perpendicular Double-Layered Media System
AU - Osaka, T.
AU - Homma, T.
AU - Watanabe, T.
AU - Kurokawa, Y.
AU - Yamamoto, M.
AU - Goto, F.
PY - 1994
Y1 - 1994
N2 - A mechanism was investigated for enhancing the reproduced voltage of a recording system combining a ring head with a electroless-deposited perpendicular double-layered medium. The mechanism of enhancement is thought to consist of the following two effects: the “phase synchronization” (PS) effect, due to a semi-hard magnetic underlayer, and the “double-layering” (DL) effect, due to the soft magnetic underlayer. By proper ac erasing of the reproduced signal through the action of the underlayer (at an underlayer coercivity of Hc(u)=50 Oe) in a CoNiReP/CoB double-layered medium, the PS effect was confirmed to appear at recording densities up to about 90 kFRPI. The enhancement of the reproduced voltage at densities higher than 90 kFRPI was still observed after such ac erasure, and originates solely in the DL effect.
AB - A mechanism was investigated for enhancing the reproduced voltage of a recording system combining a ring head with a electroless-deposited perpendicular double-layered medium. The mechanism of enhancement is thought to consist of the following two effects: the “phase synchronization” (PS) effect, due to a semi-hard magnetic underlayer, and the “double-layering” (DL) effect, due to the soft magnetic underlayer. By proper ac erasing of the reproduced signal through the action of the underlayer (at an underlayer coercivity of Hc(u)=50 Oe) in a CoNiReP/CoB double-layered medium, the PS effect was confirmed to appear at recording densities up to about 90 kFRPI. The enhancement of the reproduced voltage at densities higher than 90 kFRPI was still observed after such ac erasure, and originates solely in the DL effect.
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U2 - 10.1109/TJMJ.1994.4565894
DO - 10.1109/TJMJ.1994.4565894
M3 - Article
AN - SCOPUS:0028479176
SN - 0882-4959
VL - 9
SP - 63
EP - 67
JO - IEEE Translation Journal on Magnetics in Japan
JF - IEEE Translation Journal on Magnetics in Japan
IS - 4
ER -