Magnetic recording medium and magnetic recording device

A magnetic recording medium, comprising:

• a first magnetic region;
• a second magnetic region;
• a third magnetic region;
• a first intermediate region provided between the second magnetic region and the first magnetic region;
• and
• a second intermediate magnetic region provided between the third magnetic region and the second magnetic region,
• the second magnetic region being provided between the third magnetic region and the first magnetic region in a first direction from the third magnetic region to the first magnetic region,
• a first composition ratio of a first Co atomic concentration in the first magnetic region to a first Pt atomic concentration in the first magnetic region being higher than a second composition ratio of a second Co atomic concentration in the second magnetic region to a second Pt atomic concentration in the second magnetic region,
• a third composition ratio of a third Co atomic concentration in the third magnetic region to a third Pt atomic concentration in the third magnetic region being higher than the second composition ratio,
• the first magnetic region, the second magnetic region and the third magnetic region being granular magnetic region,
• the second intermediate magnetic region being a continuous magnetic region, and
• the first intermediate region being non-magnetic.

A magnetic recording medium, comprising:

• a first magnetic region;
• a second magnetic region;
• and
• a third magnetic region;
• the second magnetic region being provided between the third magnetic region and the first magnetic region in a first direction from the third magnetic region to the first magnetic region,
• a first anisotropic magnetic field of the first magnetic region being larger than a second anisotropic magnetic field of the second magnetic region,
• a third anisotropic magnetic field in the third magnetic region being larger than the second anisotropic magnetic field,
• a first distance along the first direction between the second magnetic region and the first magnetic region being longer than a second distance along the first direction between the third magnetic region and the second magnetic region, or the first magnetic region being separated from the second magnetic region and the third magnetic region being in contact with the second magnetic region.