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Hysteresis loops of . (a) and (b): . (c) and (d): . Figures (a) and (c) were measured in the longitudinal direction; (b) and (d) were measured in the perpendicular direction.
TEM of (a) and (b) .
Exchange-coupling dependence of for composite media between soft and hard layers (: thickness of PdSi interlayer).
Hysteresis loops in perpendicular direction. (a)–(c) Glass/RuAl(4 nm)/ ; , 0.5, and 4 nm for (a), (b), and (c), respectively; (d) glass/RuAl(4 nm)/.
(a) Recording patterns for composite media with different bit length as indicated at the right side of the figure; (b) signal-to-noise ratio (SNR) vs linear density for composite media (●), perpendicular media (∎), and reference commercial longitudinal media (▴).
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