公开(公告)号：US20170345448A1

公开(公告)日：2017-11-30

申请号：US15664189

申请日：2017-07-31

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Martin Blaber ,  Michael A. Seigler ,  Michael C. Kautzky ,  Tong Zhao ,  Justin Brons ,  John C. Duda ,  Yuhang Cheng

IPC: G11B5/31 ,  G11B5/00

CPC classification number: G11B5/314 ,  G11B5/3116 ,  G11B5/3133 ,  G11B2005/0021

Abstract: Devices having air bearing surfaces (ABS), the devices include 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 the disc includes a disc material and the peg includes a peg material, wherein the disc material is different from the peg material and wherein the disc material has a first real part of the permittivity and a peg material has a second real part of the permittivity and the second real part of the permittivity is not greater than the first real part of the permittivity.

公开(公告)号：US20150255097A1

公开(公告)日：2015-09-10

申请号：US14720162

申请日：2015-05-22

Applicant: Seagate Technology LLC

Inventor： Tong Zhao ,  John C. Duda ,  Michael Christopher Kautzky

IPC: G11B5/48

CPC classification number: G11B5/4866 ,  G11B5/127 ,  G11B5/1278 ,  G11B5/187 ,  G11B5/1871 ,  G11B5/3133 ,  G11B5/314 ,  G11B5/3163 ,  G11B5/6088 ,  G11B13/08 ,  G11B2005/0021 ,  Y10T29/49025 ,  Y10T29/49032

Abstract: Apparatuses, systems, and methods are disclosed related to heat assisted magnetic recording. According to one embodiment, an apparatus that includes a heat sink region and a near field transducer region is disclosed. The near field transducer region is thermally coupled to the heat sink region. At least one of the heat sink region and the near field transducer region includes both an inner core and an outer shell. The inner core can be comprised of a non-plasmonic material and the outer shell can be comprised of a plasmonic material. In further embodiments, the inner core is comprised of a material having a relatively higher electron-phonon coupling constant and the outer shell is comprised of a material having a relatively lower electron-phonon coupling constant.

Abstract translation: 公开了与热辅助磁记录相关的装置，系统和方法。 根据一个实施例，公开了一种包括散热片区域和近场换能器区域的装置。 近场换能器区域热耦合到散热片区域。 散热片区域和近场传感器区域中的至少一个包括内核和外壳两者。 内核可以由非等离子体激元材料组成，外壳可以由等离子体激元材料构成。 在另外的实施例中，内芯由具有相对较高的电子 - 声子耦合常数的材料构成，并且外壳由具有较低电子 - 声子耦合常数的材料组成。

公开(公告)号：US08873352B1

公开(公告)日：2014-10-28

申请号：US14206683

申请日：2014-03-12

Applicant: Seagate Technology LLC

Inventor： Zoran Jandric ,  Chris Rea ,  Pierre Asselin ,  Michael Thomas Johnson ,  Manuel Charles Anaya-Dufresne ,  John C. Duda

IPC: G11B11/00

CPC classification number: G11B5/6088 ,  G11B5/3133 ,  G11B5/314 ,  G11B2005/0021

Abstract: An apparatus has a near-field transducer located proximate a media-facing surface of a slider magnetic recording heat. A waveguide is configured to couple light to the near-field transducer and includes a top cladding layer facing the near-field transducer, a bottom cladding layer, and a core layer between the top and bottom cladding layers. The apparatus includes a write pole with a flat portion substantially parallel to the core layer and a sloped portion extending from the flat portion of the write pole towards the media-facing surface at an angle to the core layer and to the media-facing surface. A light mitigation layer is located between the top cladding layer and the write pole.

Abstract translation: 一种装置具有靠近滑块磁记录热的面向介质表面的近场换能器。 波导被配置为将光耦合到近场换能器并且包括面向近场换能器的顶部覆层，底部包层以及在顶部和底部包层之间的芯层。 该装置包括具有基本上平行于芯层的平坦部分的写入极和从写入极的平坦部分朝着与介质相对的表面以与芯层成一定角度延伸到介质面向表面的倾斜部分。 光缓解层位于顶包层和写柱之间。