Devices including at least one adhesion layer and methods of forming adhesion layers

A device comprising:

• a write pole;
• a waveguide core;
• a near field transducer (NFT), the NFT comprising a disc and a peg, wherein the peg has a first surface, a second surface, a third surface, and a fourth surface, wherein the first surface faces the waveguide core, the second surface faces the pole and the third surface and the fourth surface span from the first surface to the second surface on opposing sides of the peg five surfaces thereof and the disc has an upper surface and a side surface;
• and
• at least one adhesion layers positioned on the second surface, the third surface, and the fourth surface of the peg at least one surface of the peg or the disc, the adhesion layers comprising oxides of yttrium,
• wherein the seed layers are positioned between the NFT and the at least one adhesion layers, and wherein the seed layers have thicknesses from 1 Angstrom (Å) to 10 Å.

A device comprising:

• an energy source;
• a write pole;
• a waveguide core;
• a near field transducer (NFT) configured to receive energy from the energy source, the NFT having a peg and a disc, the peg having a first surface, a second surface, a third surface, and a fourth surface, wherein the first surface faces the waveguide core, the second surface faces the pole and the third surface and the fourth surface span from the first surface to the second surface on opposing sides of the peg at least one external surface;
• and
• at least one adhesion layers positioned on the second surface, the third surface, and the fourth surface of the peg at least a portion of the at least one external surface, the adhesion layer comprising oxides of yttrium,
• wherein the seed layers are positioned between the NFT and the adhesion layers, and wherein the seed layers have thicknesses from 1 Angstrom (Å) to 10 Å.