Publication number: 20170316793
Abstract: Devices having air bearing surfaces (ABS), the devices including a near field transducer (NFT) that includes a disc configured to convert photons incident thereon into plasmons; and a peg configured to couple plasmons coupled from the disc into an adjacent magnetic storage medium, wherein at least one of a portion of the peg, a portion of the disc, or a portion of both the peg and the disc include a multilayer structure including at least two layers including at least one layer of a first material and at least one layer of a second material, wherein the first material and the second material are not the same and wherein the first and the second materials independently include aluminum (Al), antimony (Sb), bismuth (Bi), boron (B), barium (Ba), calcium (Ca), cerium (Ce), chromium (Cr), cobalt (Co), copper (Cu), erbium (Er), gadolinium (Gd), gallium (Ga), germanium (Ge), gold (Au), hafnium (Hf), indium (In), iridium (Ir), iron (Fe), lanthanum (La), magnesium (Mg), manganese (Mn), molybdenum (Mo), nickel (Ni), ni
Type:
Application
Filed:
June 5, 2017
Publication date:
November 2, 2017
Inventors:
Martin Blaber, Tong Zhao, Justin Brons, Michael Kautzky
Patent number: 9805757
Abstract: A near field transducer includes gold and at least one dopant. The dopant can include at least one of: Cu, Rh, Ru, Ag, Ta, Cr, Al, Zr, V, Pd, Ir, Co, W, Ti, Mg, Fe, or Mo. The dopant concentration may be in a range from 0.5% and 30%. The dopant can be a nanoparticle oxide of V, Zr, Mg, Ca, Al, Ti, Si, Ce, Y, Ta, W, or Th, or a nitride of Ta, Al, Ti, Si, In, Fe, Zr, Cu, W or B.
Type:
Grant
Filed:
April 22, 2013
Date of Patent:
October 31, 2017
Assignee:
Seagate Technology LLC
Inventors:
Tong Zhao, Michael Christopher Kautzky, William Albert Challener, Michael Allen Seigler
Publication number: 20170263276
Abstract: Devices that include a near field transducer (NFT), the NFT having a disc and a peg, and the peg having five surfaces thereof; and at least one adhesion layer positioned on at least one of the five surfaces of the peg, the adhesion layer including one or more of the following: yttrium (Y), tin (Sn), iron (Fe), copper (Cu), carbon (C), holmium (Ho), gallium (Ga), silver (Ag), ytterbium (Yb), chromium (Cr), tantalum (Ta), iridium (Ir), zirconium (Zr), yttrium (Y), scandium (Sc), cobalt (Co), silicon (Si), nickel (Ni), molybdenum (Mo), niobium (Nb), palladium (Pd), titanium (Ti), rhenium (Re), osmium (Os), platinum (Pt), aluminum (Al), ruthenium (Ru), rhodium (Rh), vanadium (V), germanium (Ge), tin (Sn), magnesium (Mg), iron (Fe), copper (Cu), tungsten (W), hafnium (Hf), carbon (C), boron (B), holmium (Ho), antimony (Sb), gallium (Ga), manganese (Mn), silver (Ag), indium (In), bismuth (Bi), zinc (Zn), ytterbium (Yb), and combinations thereof.
Type:
Application
Filed:
May 26, 2017
Publication date:
September 14, 2017
Inventors:
Vijay Karthik Sankar, Tong Zhao, Yongjun Zhao, Michael C. Kautzky, Hui Brickner, Sarbeswar Sahoo
Patent number: 9672848
Abstract: Devices having air bearing surfaces (ABS), the devices including a near field transducer (NFT) that includes a disc configured to convert photons incident thereon into plasmons; and a peg configured to couple plasmons coupled from the disc into an adjacent magnetic storage medium, wherein at least one of a portion of the peg, a portion of the disc, or a portion of both the peg and the disc include a multilayer structure including at least two layers including at least one layer of a first material and at least one layer of a second material, wherein the first material and the second material are not the same and wherein the first and the second materials independently include aluminum (Al), antimony (Sb), bismuth (Bi), boron (B), barium (Ba), calcium (Ca), cerium (Ce), chromium (Cr), cobalt (Co), copper (Cu), erbium (Er), gadolinium (Gd), gallium (Ga), germanium (Ge), gold (Au), hafnium (Hf), indium (In), iridium (Ir), iron (Fe), lanthanum (La), magnesium (Mg), manganese (Mn), molybdenum (Mo), nickel (Ni), ni
Type:
Grant
Filed:
May 27, 2016
Date of Patent:
June 6, 2017
Assignee:
Seagate Technology LLC
Inventors:
Martin Blaber, Tong Zhao, Justin Brons, Michael Kautzky
Patent number: 9666220
Abstract: Devices that include a near field transducer (NFT), the NFT having a disc and a peg, and the peg having five surfaces thereof; and at least one adhesion layer positioned on at least one of the five surfaces of the peg, the adhesion layer including one or more of the following: yttrium (Y), tin (Sn), iron (Fe), copper (Cu), carbon (C), holmium (Ho), gallium (Ga), silver (Ag), ytterbium (Yb), chromium (Cr), tantalum (Ta), iridium (Ir), zirconium (Zr), yttrium (Y), scandium (Sc), cobalt (Co), silicon (Si), nickel (Ni), molybdenum (Mo), niobium (Nb), palladium (Pd), titanium (Ti), rhenium (Re), osmium (Os), platinum (Pt), aluminum (Al), ruthenium (Ru), rhodium (Rh), vanadium (V), germanium (Ge), tin (Sn), magnesium (Mg), iron (Fe), copper (Cu), tungsten (W), hafnium (Hf), carbon (C), boron (B), holmium (Ho), antimony (Sb), gallium (Ga), manganese (Mn), silver (Ag), indium (In), bismuth (Bi), zinc (Zn), ytterbium (Yb), and combinations thereof.
Type:
Grant
Filed:
May 25, 2015
Date of Patent:
May 30, 2017
Assignee:
Seagate Technology LLC
Inventors:
Vijay Karthik Sankar, Tong Zhao, Yongjun Zhao, Michael C. Kautzky, Hui Brickner, Sarbeswar Sahoo