Head and media overcoats for heat assisted magnetic recording

A magnetic recording drive, comprising:

• a write head, the write head comprising:
• a main pole;
• a waveguide disposed adjacent to the main pole;
• a near field transducer (NFT) coupled between the main pole and the waveguide at a media facing surface (MFS);
• and
• a head overcoat disposed on the MFS adjacent to the NFT, the head overcoat comprising SiN and having an extinction coefficient (k) value of about 0.0;
• and
• a media disposed adjacent to the MFS of the write head, the media comprising a media overcoat comprising a bilayer of SiN and C, with the C layer having a k-value of 0.5 or greater.

A magnetic recording drive, comprising:

• a write head, the write head comprising:
• a main pole;
• a waveguide disposed adjacent to the main pole;
• a near field transducer (NFT) coupled between the main pole and the waveguide at a media facing surface (MFS);
• and
• a transparent head overcoat disposed on the MFS adjacent to the NFT, the head overcoat comprising SiN and having an extinction coefficient (k) value of less than about 0.1;
• and
• a media disposed adjacent to the MFS of the write head, the media comprising a heat absorbent media overcoat comprising a first layer of C and a second layer SiN, the first layer of C having a k-value of 0.5 or greater.