Materials for near field transducers and near field transducers containing same
A device including a near field transducer, the near field transducer including gold (Au) and at least one other secondary atom, the at least one other secondary atom selected from: boron (B), bismuth (Bi), indium (In), sulfur (S), silicon (Si), tin (Sn), hafnium (Hf), niobium (Nb), manganese (Mn), antimony (Sb), tellurium (Te), carbon (C), nitrogen (N), and oxygen (O), and combinations thereof; erbium (Er), holmium (Ho), lutetium (Lu), praseodymium (Pr), scandium (Sc), uranium (U), zinc (Zn), and combinations thereof; and barium (Ba), chlorine (Cl), cesium (Cs), dysprosium (Dy), europium (Eu), fluorine (F), gadolinium (Gd), germanium (Ge), hydrogen (H), iodine (I), osmium (Os), phosphorus (P), rubidium (Rb), rhenium (Re), selenium (Se), samarium (Sm), terbium (Tb), thallium (Th), and combinations thereof.
1. A device comprising:
a near field transducer (NFT), the near field transducer comprising gold (Au) and at least two other secondary atoms, a first least one secondary atom selected from:
boron (B), bismuth (Bi), sulfur (S), hafnium (Hf), niobium (Nb), manganese (Mn), tellurium (Te), carbon (C), nitrogen (N), and combinations thereof;
erbium (Er), holmium (Ho), lutetium (Lu), praseodymium (Pr), scandium (Sc), uranium (U), and combinations thereof; and a second at least one secondary atom selected from erbium (Er), scandium (Sc), or some combination thereof.
2. The device according to claim 1 , wherein the at least one first secondary atom is selected from: boron (B), bismuth (Bi), sulfur (S), hafnium (Hf), niobium (Nb), manganese (Mn), tellurium (Te), carbon (C), and nitrogen (N), and combinations thereof.
3. The device according to claim 1 , wherein the at least one first secondary atom is selected from: carbon (C), and nitrogen (N), or combinations thereof.
4. The device according to claim 1 , wherein the NFT comprises about 0.1 atomic percent to about 50 atomic percent of the at least one secondary atom.
5. The device according to claim 1 , wherein the NFT comprises about 0.1 atomic percent to about 5 atomic percent of the at least one secondary atom.
6. The device according to claim 1 further comprising an energy source.
7. A device comprising:
a light source;
a waveguide; and
a near field transducer (NFT), the near field transducer comprising gold (Au) and at least one other secondary atom, the at least one other secondary atom selected from:
erbium (Er), holmium (Ho), lutetium (Lu), praseodymium (Pr), scandium (Sc), uranium (U), and combinations thereof,
wherein the light source, waveguide and near field transducer are configured to transmit light from the light source to the waveguide and finally the near field transducer.
8. The device according to claim 7 , wherein the at least one secondary atom is selected from: erbium (Er), scandium (Sc), or combinations thereof.
9. A device comprising:
a light source;
a waveguide; and
a near field transducer (NFT), the near field transducer comprising gold (Au) and at least two other secondary atom,
wherein a first secondary atom is selected from boron (B), bismuth (Bi), sulfur (S), hafnium (Hf), niobium (Nb), manganese (Mn), tellurium (Te), carbon (C), and nitrogen (N), and combinations thereof;
erbium (Er), holmium (Ho), lutetium (Lu), praseodymium (Pr), scandium (Sc), uranium (U), and combinations thereof, and
wherein a second secondary atom is selected from:
erbium (Er), scandium (Sc), or some combination thereof.
10. A disc drive comprising:
at least one actuator arm having a first and a second end;
at least one head, wherein each arm has a head at the first end thereof and wherein each head comprises:
a light source;
a near field transducer (NFT), the near field transducer comprising gold (Au) and at least one other secondary atom, the at least one other secondary atom selected from:
erbium (Er), scandium (Sc), and combinations thereof;
a magnetic reader; and
a magnetic writer,
wherein the light source and the near field transducer are configured to transmit light from the light source to the near field transducer in order to assist the magnetic writer with writing.
11. The disc drive according to claim 10 , wherein the NFT comprises about 0.1 atomic percent to about 5 atomic percent of the at least one secondary atom.