Magnetic tape having characterized magnetic layer surface, magnetic tape cartridge, and magnetic tape device

A magnetic tape comprising:

• a non-magnetic support;
• and
• a magnetic layer containing a ferromagnetic powder, wherein
• the non-magnetic support is polyethylene terephthalate, polyethylene naphthalate or polyamide,
• one or more kinds of component selected from the group consisting of a fatty acid and a fatty acid amide are included in a portion of a magnetic layer side on the non-magnetic support,
• a C—H derived C concentration calculated from a C—H peak surface area ratio in C1s spectra obtained by X-ray photoelectron spectroscopy performed on a surface of the magnetic layer at a photoelectron take-off angle of 10 degrees is 45 atom % to 65 atom %, and
• in an environment with a temperature of 32° C. and a relative humidity of 80%,
• a frictional force F45° on the surface of the magnetic layer with respect to an LTO8 head measured at a head tilt angle of 45° is 4 gf to 15 gf, and
• a standard deviation of a frictional force F on the surface of the magnetic layer with respect to the LTO8 head measured at each of head tilt angles of 0°, 15°, 30°, and 45° is 10 gf or less.