Materials for near field transducers, near field tranducers containing same, and methods of forming

US10964347B2 · 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
• Justin Brons · Bloomington, US
• Steve Riemer · Minneapolis, US
• Jie Gong · Eden Prairie, US
• Michael Allen Seigler · Eden Prairie, US

Key dates

• Filing date: Nov 21, 2016
• Grant date: Mar 30, 2021
• Expiry date: Nov 21, 2036

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), silver (Ag), copper (Cu), or aluminum (Al), and at least two other secondary atoms, the at least two other secondary atoms selected from: boron (B), bismuth (Bi), indium (In), sulfur (S), silicon (Si), tin (Sn), manganese (Mn), tellurium (Te), holmium (Ho), lutetium (Lu), praseodymium (Pr), scandium (Sc), uranium (U), barium (Ba), chlorine (Cl), cesium (Cs), dysprosium (Dy), europium (Eu), fluorine (F), germanium (Ge), hydrogen (H), iodine (I), rubidium (Rb), selenium (Se), terbium (Tb), nitrogen (N), oxygen (O), carbon (C), antimony (Sb), gadolinium (Gd), samarium (Sm), thallium (Tl), cadmium (Cd), neodymium (Nd), phosphorus (P), lead (Pb), hafnium (Hf), niobium (Nb), erbium (Er), zinc (Zn), magnesium (Mg), palladium (Pd), vanadium (V), zinc (Zn), chromium (Cr), iron (Fe), lithium (Li), nickel (Ni), platinum (Pt), sodium (Na), strontium (Sr), calcium (Ca), yttrium (Y), thorium (Th), beryllium (Be), thulium (Tm), erbium (Er), ytterbium (Yb), promethium (Pm), neodymium (Nd cobalt (Co), cerium (Ce), lanthanum (La), praseodymium (Pr), or combinations thereof.