Recording head including NFT and heatsink

An apparatus comprising:

• a near field transducer positioned adjacent to an air bearing surface of the apparatus the near field transducer comprising silver (Ag) and at least one other element or compound, wherein the at least one other element or compound is selected from:
• copper (Cu), palladium (Pd), gold (Au), zirconium (Zr), platinum (Pt), geranium (Ge), nickel (Ni), tungsten (W), cobalt (Co), rhodium (Rh), ruthenium (Ru), tantalum (Ta), chromium (Cr), aluminum (Al), vanadium (V), iridium (Ir), titanium (Ti), magnesium (Mg), iron (Fe), molybdenum (Mo), silicon (Si), or combinations thereof;
• oxides of V, Zr, Mg, calcium (Ca), Al, Ti, Si, cesium (Ce), yttrium (Y), Ta, W or thorium (Th), Co, or combinations thereof;
• or
• nitrides of Ta, Al, Ti, Si, indium (In), Fe, Zr, Cu, W, boron (B), halfnium (Hf), or combinations thereof, and
• wherein the near field transducer comprises a disk and a peg, wherein the peg extends from the disk portion to the air bearing surface of the apparatus;
• a first magnetic pole;
• a heat sink positioned between the first magnetic pole and the near field transducer;
• and
• a diffusion barrier positioned between the near field transducer and the heat sink, the diffusion barrier comprising rhodium (Rh) or an alloy thereof;
• ruthenium (Ru) or an alloy thereof;
• titanium (Ti) or an alloy thereof;
• tantalum (Ta) or an alloy thereof;
• tungsten (W) or an alloy thereof;
• borides;
• nitrides;
• transition metal oxides;
• or palladium (Pd) or an alloy thereof.

An apparatus comprising:

• a near field transducer positioned adjacent to an air bearing surface, near field transducer comprising silver (Ag) and at least one other element or compound, wherein the at least one other element or compound is selected from:
• copper (Cu), palladium (Pd), gold (Au), zirconium (Zr), platinum (Pt), geranium (Ge), nickel (Ni), tungsten (W), cobalt (Co), rhodium (Rh), ruthenium (Ru), tantalum (Ta), chromium (Cr), aluminum (Al), vanadium (V), iridium (Ir), titanium (Ti), magnesium (Mg), iron (Fe), molybdenum (Mo), silicon (Si), or combinations thereof;
• oxides of V, Zr, Mg, calcium (Ca), Al, Ti, Si, cesium (Ce), yttrium (Y), Ta, W or thorium (Th), Co, or combinations thereof;
• or
• nitrides of Ta, Al, Ti, Si, indium (In), Fe, Zr, Cu, W, boron (B), halfnium (Hf), or combinations thereof, and
• wherein the near field transducer comprises an antenna;
• a first magnetic pole;
• a heat sink positioned between the first magnetic pole and the near field transducer;
• and
• a diffusion barrier positioned between the near field transducer and the first magnetic pole, the diffusion barrier comprising rhodium (Rh) or an alloy thereof;
• ruthenium (Ru) or an alloy thereof;
• titanium (Ti) or an alloy thereof;
• tantalum (Ta) or an alloy thereof;
• tungsten (W) or an alloy thereof;
• borides;
• nitrides;
• transition metal oxides;
• or palladium (Pd) or an alloy thereof.