TY - JOUR
T1 - Evaluation of double-layered magnetic recording medium composed of perpendicular and longitudinal anisotropy layers
AU - Osaka, Tetsuya
AU - Homma, Takayuki
AU - Watanabe, Toshihiko
AU - Kurokawa, Yoshiaki
PY - 1994/4
Y1 - 1994/4
N2 - A double-layered (DL) medium composed of a CoNiReP perpendicular anisotropy top layer (0.20 μm thick) and CoP longitudinal anisotropy underlayer (0.05 μm thick) was fabricated and its recording characteristics were investigated with a combination of a ring-type head. The reproduced voltage of the DL medium was enhanced to be larger than that of the simple summation of the reproduced voltage of the CoNiReP single-layered medium and that of the CoP one. Moreover, the reproduced waveform of the DL medium showed a single peak pulse and it did not change even at higher recording magnetomotive force (MMF). These results suggest that the reproduced voltage enhancement comes from the phase synchronization effect even at higher recording MMF.
AB - A double-layered (DL) medium composed of a CoNiReP perpendicular anisotropy top layer (0.20 μm thick) and CoP longitudinal anisotropy underlayer (0.05 μm thick) was fabricated and its recording characteristics were investigated with a combination of a ring-type head. The reproduced voltage of the DL medium was enhanced to be larger than that of the simple summation of the reproduced voltage of the CoNiReP single-layered medium and that of the CoP one. Moreover, the reproduced waveform of the DL medium showed a single peak pulse and it did not change even at higher recording magnetomotive force (MMF). These results suggest that the reproduced voltage enhancement comes from the phase synchronization effect even at higher recording MMF.
KW - Electroless-deposited medium
KW - Perpendicular magnetic recording
KW - Ring-type head
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U2 - 10.1143/JJAP.33.L594
DO - 10.1143/JJAP.33.L594
M3 - Article
AN - SCOPUS:0028421498
SN - 0021-4922
VL - 33
SP - L594-L596
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
IS - 4
ER -