| abstract |
(57) [Problem] To provide a high-output magnetic recording medium in which the surface state is controlled without performing a polishing step of a magnetic layer and the spacing loss is reduced. SOLUTION: In an elemental analysis of an upper magnetic layer surface measured by X-ray photoelectron spectroscopy using a needle-shaped ferromagnetic metal powder mainly composed of Fe having a major axis length of 100 nm or less, the X-ray photoelectron spectroscopy measuring apparatus is used. 5 ° angle between detector and the surface And the ratio of the number of atoms of iron to carbon is 0.05 or more, and the center line average roughness Ra of the upper magnetic layer is Is 8 nm or less, the thickness is 0.05 μm or less, and the longitudinal squareness ratio of the magnetic recording medium is 0.88 or more. |