| abstract |
PROBLEM TO BE SOLVED: To secure a good reproduction output noise ratio (C / N) in a short wavelength region capable of dealing with a high output and a good reproduction output noise ratio (C / N), particularly a high capacity of 1 TB or more. Thus, a magnetic tape excellent in high recording density characteristics is provided. In a magnetic tape having a nonmagnetic support and at least one magnetic layer formed on one side of the support, the magnetic powder contained in the uppermost magnetic layer has a particle size of 30 nm or less. A magnetic tape comprising a substantially granular magnetic particle and having a ratio [Hc M / Hc T ] of a coercive force Hc M in the longitudinal direction to a coercive force Hc T in the width direction of 2.2 or more, A magnetic tape having the above-described configuration, wherein the magnetic powder contained in the upper magnetic layer is made of an iron nitride magnetic powder having a particle size of 20 nm or less and an axial ratio (major axis / minor axis) of less than 2. [Selection figure] None |