METHOD FOR FORMING MAGNETIC PATTERN OF MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING DEVICE AND PHOTOMASK

摘要

PROBLEM TO BE SOLVED: To provide a magnetic recording medium and a magnetic recording device, hardly affecting interference fringe, high in the precision of a magnetic pattern, less in the modulation of output signal of the magnetic pattern and capable of attaining a high-density recording, inexpensively in a short time by efficiently and accurately forming a fine magnetic pattern by preventing the occurrence of interference fringe in technology to form the magnetic pattern in a magnetic recording medium by combining local heating and the impression of an external magnetic field. SOLUTION: This magnetic pattern forming method of the magnetic recording medium includes a process to locally heat an irradiated portion of a magnetic layer by irradiating the magnetic recording medium 101 constituted by providing the magnetic layer on a substrate with energy beams via a photomask 102 to which a transmitting portion and a non-transmitting portion of the energy beams are provided and a process to impress the external magnetic field on the magnetic layer. The photomask 102 has reflectivity of <=30% of the energy beams at the transmitting portion and the non-transmitting portion at least on a surface to face the magnetic recording medium 101.