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

US9502070B2 · 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: Jun 24, 2014
• Grant date: Nov 22, 2016
• Expiry date: Jul 17, 2034

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.