Abstract

The effect of orientation ratio on recording characteristics has been experimentally investigated. Thin film longitudinal media with orientation ratios (ORs) of 2.34 and 0.86, having almost the same coercivity, were used in this study. High OR film medium makes the transition sharp, and high signal output and low medium noise are obtained in low densities. However, at high densities, noise power becomes significantly higher than low OR film medium, and strong demagnetization field from previously recorded transition induces nonlinear bit shift of newly recorded transition which results in poor overwrite performance.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

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