Materials for near field transducers and near field transducers containing same

US10482914B2 · kind B2 · utility

Assignee

• Seagate Technology LLC · US

Inventors

• Yuhang Cheng · Edina, US
• Tong Zhao · Eden Prairie, US
• Michael C. Kautzky · Eagan, US
• Ed F. Rejda · Bloomington, US
• Kurt W. Wierman · Eden Prairie, US
• Scott Franzen · Savage, US
• Sethuraman Jayashankar · Dorpsstraat, US
• Sarbeswar Sahoo · Shakopee, US
• Jie Gong · Eden Prairie, US
• Michael Allen Seigler · Eden Prairie, US

Key dates

• Filing date: Apr 13, 2018
• Grant date: Nov 19, 2019
• Expiry date: Apr 13, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G11B2005/0021
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

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.