Near-field recording device having heating mechanism positioned near a trailing side of a magnetic pole

A magnetic recording apparatus comprises:

• a magnetic recording medium;
• a magnetic head having a magnetic pole for applying a recording magnetic field to the magnetic recording medium;
• and
• a heating mechanism for locally heating the magnetic recording medium, wherein the heating mechanism heats a position shifted in a track edge direction from a track width direction center at a trailing side of the magnetic pole,
• wherein a switching magnetic field at a time of non-heating of the magnetic recording medium is lower than a recording magnetic field intensity applied from the magnetic pole, and when a width in which an amount of reduction of the switching magnetic field of the magnetic recording medium is half an amount of reduction at a heating center position is a spot size, an offset amount of the heating center position by the heating mechanism from the track width direction center of the magnetic pole, the spot size of the heating mechanism, and the magnetic pole width satisfy a following relation:
• the offset amount<the magnetic pole width/2,
• the spot size<the offset amount×2,
• the spot size>the magnetic pole width/2−offset amount.

A magnetic recording apparatus comprises:

• a magnetic recording medium;
• a magnetic head having a magnetic pole for applying a recording magnetic field to the magnetic recording medium;
• and
• a heating mechanism for locally heating the magnetic recording medium, wherein the heating mechanism heats a position shifted in a track edge direction from a track width direction center at a trailing side of the magnetic pole,
• wherein a switching magnetic field at a time of non-heating of the magnetic recording medium is higher than a recording magnetic field intensity applied from the magnetic pole, and when a width in which an amount of reduction of the switching magnetic field of the magnetic recording medium is half an amount of reduction at a heating center position is a spot size, an offset amount of the heating center position by the heating mechanism from the track width direction center of the magnetic pole, the spot size of the heating mechanism, and the magnetic pole width satisfy a following relation:
• 0.1×the spot size<the offset amount<0.3×the spot size,
• the magnetic pole width>12×the offset amount−2×the spot size,
• the magnetic pole width>−30×the offset amount+5×the spot size.