VERTICAL MAGNETIC RECORDING MEDIUM, MANUFACTURING METHOD OF VERTICAL MAGNETIC RECORDING MEDIUM, AND VERTICAL MAGNETIC RECORDING AND REPRODUCING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a vertical magnetic recording medium with a recording and reproducing performance excellent in SNR.SOLUTION: There is provided a vertical magnetic recording medium including at least one layer of under layer and a vertical recording layer on a non-magnetic substrate. The vertical recording layer includes a ferromagnetic layer having magnetic crystal grains and non-magnetic grain boundary regions surrounding the magnetic crystal grains; and a dielectric magnetic layer which has both of magnetic property and dielectric property, and includes crystal grains and amorphous grain boundary regions surrounding the crystal grains. The magnetic crystal grains contain Fe and Pt.SELECTED DRAWING: Figure 1