| 摘要 |
A magnetic recording medium capable of high-density recording and suitable for linear recording/reproducing and the reproduction of signals using a magnetoresistive head is provided. The magnetic recording medium includes a non-magnetic substrate and a magnetic layer having an oblique columnar structure formed on the non-magnetic substrate. The magnetic layer includes a first ferromagnetic metal thin film and a second ferromagnetic metal thin film whose direction of growth of its oblique columnar structure is the opposite of that of the first ferromagnetic metal thin film. Mr. delta , the product of residual magnetization Mr and film thickness delta , satisfies 3 (mA) ≤ Mr. delta < 30 (mA). Thickness d1 and thickness d2 of said first and second ferromagnetic metal thin films, respectively, satisfy 40 (nm) ≤ d1 + d2 ≤ 100 (nm) as well as 1/2 ≤ d2/d1 ≤ 1. Coercivity Hc of said magnetic layer satisfies Hc ≥ 100 (kA/m). <IMAGE>
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