Magnetic recording medium, magnetic tape cartridge, and magnetic recording and reproducing device

A magnetic recording medium comprising:

• a non-magnetic support;
• and
• a magnetic layer including a ferromagnetic powder,
• wherein an anisotropic magnetic field Hk is 12 kOe or more,
• a center line average roughness Ra of a surface of the magnetic recording medium on a magnetic layer side is 1.2 nm or less,
• a ratio θr of a contact angle θ2 with respect to 1-bromonaphthalene, measured on a surface on the magnetic layer side after a 1,1,1,2,2,3,4,5,5,5-decafluoropentane immersion of the magnetic recording medium, to a contact angle θ1 with respect to 1-bromonaphthalene, measured on the surface on the magnetic layer side before the 1,1,1,2,2,3,4,5,5,5-decafluoropentane immersion of the magnetic recording medium is 0.95 or less,
• the magnetic recording medium further comprises a fluorine-containing compound in a portion of the magnetic layer side on the non-magnetic support,
• and the fluorine-containing compound is one or more compounds selected from the group consisting of:
• (ii) a fluorine-containing compound represented by Formula 1,
• in Formula 1, n is 0 or 1, and when n is 0, Rf represents a perfluoroalkyl group and R represents an unsubstituted alkyl group having one or two carbon atoms, and
• when n is 1, Rf represents a fluorine-containing hydrocarbon group, L represents an alkylene group, and R represents a fluorine-containing hydrocarbon group;
• and
• (iii) a fluorine-containing compound represented by Formula 1,
• in Formula 1, Rf represents a fluorine-containing hydrocarbon group, L represents a divalent linking group including one or more alkylene groups and one or more ester groups, R | represents a hydrogen atom, an unsubstituted alkyl group, or a fluorine-containing hydrocarbon group, and n is 1.