PERPENDICULAR MAGNETIC RECORDING MEDIUM, MANUFACTURING METHOD THEREOF, AND MAGNETIC RECORDING AND REPRODUCING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a magnetic recording medium capable of recording and reproducing high density information by reducing switching field distribution of each magnetic dot in a patterned medium.

SOLUTION: A magnetic recording medium includes: a substrate; an auxiliary layer formed on the substrate; and at least one perpendicular magnetic recording layer formed on the auxiliary layer. The perpendicular magnetic recording layer has a magnetic dot pattern. The perpendicular magnetic recording layer is made of alloy material that contains one element selected from iron and cobalt and one element selected from platinum and palladium. Further, the alloy material has an L10structure and is (001)-oriented. The auxiliary layer has a first region that has a dot-like shape and is covered with the magnetic dot pattern and a second region that is not covered with the magnetic dot pattern. The first region is made of one metal selected from (100)- oriented nickel and iron. The second region contains an oxide of metal used in the first region.

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