Magnetic recording medium and magnetic storage apparatus
Provided is a magnetic recording medium and magnetic storage apparatus. A magnetic recording medium may include a stacked structure of orientation control, lower recording, intermediate, and upper recording layers. The lower recording layer has a coercivity higher than that of the upper recording la...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | Provided is a magnetic recording medium and magnetic storage apparatus. A magnetic recording medium may include a stacked structure of orientation control, lower recording, intermediate, and upper recording layers. The lower recording layer has a coercivity higher than that of the upper recording layer. The lower recording layer includes a first layer with a granular structure that includes magnetic particles including Co, Cr, and Pt, and an oxide covering a periphery of the magnetic particles, and a second layer with a non-granular structure that includes magnetic particles including Co, Cr, and Pt. The lower recording layer includes columnar crystals continuous with crystal particles forming the orientation control layer in a stacking direction of the stacked structure. The magnetic storage apparatus can improve the recording capacity and characterisitics of recording and reappearing at the same time. |
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