The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 17, 2016
Filed:
May. 19, 2014
Prf, West Lafayette, IN (US);
Urcan Guler, Lafayette, IN (US);
Alexander Kildishev, West Lafayette, IN (US);
Vladimir M. Shalaev, West Lafayette, IN (US);
Alexandra Boltasseva, West Lafayette, IN (US);
Donald Stocks, Lafayette, IN (US);
Gururaj Naik, West Lafayette, IN (US);
PURDUE RESEARCH FOUNDATION, West Lafayette, IN (US);
Abstract
An apparatus and method for heat-assisted magnetic recording (HAMR) employing a near-field transducer (NFT) made of plasmonic ceramic materials or intermetallics are disclosed. The NFT is made of a plasmonic material as well as a protective outer layer, which provides for longer usefulness and improved performance of the NFT and recording device. The plasmonic materials used include but are not limited to TiN, ZrN, HfN, TaN, VN, TiSi, TiAlN, TiZrN, ZnO, SnO, InO, RuO, LuO, WO, and MgB. Such materials, in combination with a protective layer, provide higher resistances and greater performance at temperatures required for HAMR, ranging from 300 up to 500 degrees Celsius.