Magnetic recording medium having characterized magnetic layer and magnetic recording and reproducing device

A magnetic recording and reproducing device comprising:

• a magnetic recording medium;
• and
• a magnetic head,
• wherein the magnetic recording medium is a magnetic recording medium comprising:
• a non-magnetic support;
• and
• a magnetic layer,
• wherein the magnetic layer comprises a ferromagnetic powder, a binding agent and an oxide abrasive,
• the ferromagnetic powder is a ferromagnetic hexagonal ferrite powder,
• an intensity ratio Int(110)/Int(114) of a peak intensity Int(110) of a diffraction peak of a (110) plane with respect to a peak intensity Int(114) of a diffraction peak of a (114) plane of a hexagonal ferrite crystal structure obtained by an X-ray diffraction analysis of the magnetic layer by using an In-Plane method is 0.5 to 4.0,
• a vertical squareness ratio of the magnetic recording medium is 0.65 to 1.00,
• one or more kinds of component selected from the group consisting of fatty acid and fatty acid amide is contained in a magnetic layer side portion on the non-magnetic support,
• a C—H derived C concentration calculated from a C—H peak area ratio of C1s spectra obtained by X-ray photoelectron spectroscopic analysis performed on the surface of the magnetic layer at a photoelectron take-off angle of 10 degrees is 45 atom % to 65 atom %, and
• an average particle diameter of the oxide abrasive obtained from a secondary ion image obtained by irradiating the surface of the magnetic layer with a focused ion beam is 0.04 μm to 0.08 μm.