公开(公告)号：US10311907B2

公开(公告)日：2019-06-04

申请号：US14229750

申请日：2014-03-28

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Thomas P. Nolan ,  Li Tang ,  Yong-Chang Feng ,  Zhong (Stella) Wu ,  Samuel D. Harkness ,  Hans J. Richter ,  Youfeng Zheng

IPC: G11B5/667 ,  G11B5/127

Abstract: Provided herein is an apparatus, including a magnetically soft underlayer (SUL); an interlayer stack overlying the SUL, wherein the interlayer stack comprises a seed layer of an fcc material; and a perpendicular magnetic recording layer overlying the interlayer stack, wherein a thickness of the SUL in combination with a distance of the SUL from the perpendicular recording layer is sufficient to orient a total magnetic field corresponding to a magnetic transducer head at an angle of about 45°.

公开(公告)号：US20140313615A1

公开(公告)日：2014-10-23

申请号：US14229750

申请日：2014-03-28

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Thomas P. Nolan ,  Li Tang ,  Yong-Chang Feng ,  Zhong (Stella) Wu ,  Samuel D. Harkness ,  Hans J. Richter ,  Youfeng Zheng

IPC: G11B5/667

CPC classification number: G11B5/667 ,  G11B5/1278

Abstract: Provided herein is an apparatus, including a magnetically soft underlayer (SUL); an interlayer stack overlying the SUL, wherein the interlayer stack comprises a seed layer of an fcc material; and a perpendicular magnetic recording layer overlying the interlayer stack, wherein a thickness of the SUL in combination with a distance of the SUL from the perpendicular recording layer is sufficient to orient a total magnetic field corresponding to a magnetic transducer head at an angle of about 45°.

Abstract translation: 本文提供了一种包括磁软底层（SUL）的装置; 覆盖所述SUL的层间叠层，其中所述中间层堆叠包括fcc材料的种子层; 以及覆盖在层间叠层上的垂直磁记录层，其中SUL的厚度与SUL与垂直记录层的距离的组合足以将对应于磁换能器头的总磁场定向在约45°的角度 °。

公开(公告)号：US20130280556A1

公开(公告)日：2013-10-24

申请号：US13919983

申请日：2013-06-17

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Li Tang ,  Weilu Xu ,  Youfeng Zheng ,  Shanghsien Rou ,  Connie Chunling Liu ,  Jianhua Xue ,  Li-Lien Lee ,  Thomas P. Nolan

IPC: G11B5/31 ,  G11B5/127

CPC classification number: G11B5/3153 ,  G11B5/1276 ,  G11B5/1278 ,  G11B5/65 ,  G11B5/66 ,  G11B5/667 ,  G11B5/7325 ,  Y10T428/115

Abstract: Provided herein, is an apparatus that includes a nonmagnetic substrate having a surface; and a plurality of overlying thin film layers forming a layer stack on the substrate surface. The layer stack includes a magnetically hard perpendicular magnetic recording layer structure and an underlying soft magnetic underlayer (SUL), wherein the sum of a magnetic thickness of the layer stack is a magnetic thickness of up to about 2 memu/cm̂2.

Abstract translation: 本文提供了一种包括具有表面的非磁性基板的装置; 以及在衬底表面上形成层叠的多个上覆薄膜层。 层叠层包括磁性硬的垂直磁记录层结构和底层软磁性底层（SUL），其中层叠层的磁性厚度之和是至多约2emu / cm 2的磁性厚度。

公开(公告)号：US20140093746A1

公开(公告)日：2014-04-03

申请号：US13632154

申请日：2012-09-30

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Antonio Javier Zambano ,  Li Tang ,  John David Westwood

IPC: G11B5/66

CPC classification number: G11B5/66 ,  G11B5/667 ,  G11B5/7379

Abstract: An apparatus includes a disk substrate and a soft underlayer overlying the disk substrate. A magnetic seed layer overlies the soft underlayer, wherein the magnetic seed layer is formed by a hexagonal close-packed lattice material and has in-plane magnetic anisotropy.

Abstract translation: 一种装置包括盘基片和覆盖盘基片的软底层。 磁性种子层覆盖软底层，其中磁性种子层由六方密堆积的晶格材料形成并且具有面内磁各向异性。