NFT with mechanically robust materials
A recording head includes a near-field transducer proximate a media-facing surface. The near-field transducer comprises an aperture portion surrounded by walls of plasmonic material, the walls oriented normal to the media-facing surface. A notch protrudes within the aperture. The notch comprises at least one of Rh and Ir. A write pole is proximate the near-field transducer. The write pole has a back surface facing away from the media-facing surface and an aperture-facing surface proximate the aperture.
1. A near-field transducer, comprising:
a base portion comprising a thermally robust material; and
a peg embedded in a part of the base portion that faces a media-facing surface, the peg comprising an elongated outer part that extends from a lower edge of the enlarged portion towards the media-facing surface and an embedded part that is embedded within the base portion, the peg comprising a plasmonic material.
2. The near-field transducer of claim 1 , wherein the peg comprises Au.
3. The near-field transducer of claim 1 , wherein the base portion comprises at least one of Rh and Ir.
4. The near-field transducer of claim 1 , wherein the base portion comprises a recess that exposes at least one side of the peg.
5. The near-field transducer of claim 1 , wherein the peg has a thickness that is less than that of the base portion.
6. The near-field transducer of claim 1 , further comprising a lower base portion.
7. The near-field transducer of claim 6 , wherein the lower base portion comprises a thermally robust material.
8. The near-field transducer of claim 6 , wherein the lower base portion comprises at least one of Rh and Ir.
9. The near-field transducer of claim 1 , wherein a first portion of the peg comprises at least one of Rh and Jr and a second portion of the peg comprises a plasmonic material.
10. The near-field transducer of claim 1 , wherein a first portion of the base portion comprises at least one of Rh and Jr and a second portion of the base portion comprises a plasmonic material.
11. The near-field transducer of claim 1 , wherein the peg comprises a plurality of layers and at least one layer of the plurality of layers comprises a plasmonic material.
12. The near-field transducer of claim 11 , wherein at least one layer of the plurality of layers comprises at least one of Rh and Ir.
13. The near-field transducer of claim 1 , wherein the base portion comprises a plurality of layers and at least one layer of the plurality of layers comprises at least one of Rh and Ir.
14. The near-field transducer of claim 13 , wherein at least one layer of the plurality of layers comprises a plasmonic material.
15. A recording head, comprising:
a magnetic write transducer
a waveguide; and
a near-field transducer, proximate the magnetic write transducer and the waveguide, the near-field transducer comprising:
a base portion comprising a thermally robust material; and
a peg embedded in a part of the base portion that faces a media-facing surface, the peg comprising an elongated outer part that extends from a lower edge of the base portion towards the media-facing surface and an embedded part that is embedded within the base portion, the peg comprising a plasmonic material.
16. The recording head of claim 15 , wherein the peg comprises Au.
17. The recording head of claim 15 , wherein the base portion comprises at least one of Rh and Ir.
18. The recording head of claim 15 , wherein the base portion comprises a recess that exposes at least one side of the peg.
19. The recording head of claim 15 , wherein the peg has a thickness that is less than that of the base portion.
20. The recording head of claim 15 , wherein the base portion comprises a lower base portion comprising a thermally robust material.