公开(公告)号：US09171555B2

公开(公告)日：2015-10-27

申请号：US14615940

申请日：2015-02-06

Applicant: Seagate Technology LLC

Inventor： Eric Meloche ,  Bin Lu ,  Lixin Jia ,  Jianhua Xue ,  John David Westwood ,  Mark Anthony Gubbins ,  Alexandru Cazacu

IPC: G11B5/33 ,  G11B5/11 ,  G11B5/127 ,  G11B5/31

CPC classification number: G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315

Abstract: Data storage systems having barriers that may reduce erasure flux and increase write-ability are provided. Data storage systems include a writing element. The writing element has a write pole with a flare region. A magnetic flux barrier is located along the write pole flare region. The magnetic flux barrier is illustratively made from an in-plane magnetically anisotropic material that has an easy plane of magnetization. In another embodiment, a data storage system includes a writing element having an air bearing surface and a shield at the air bearing surface. The shield has a magnetic permeability of approximately zero. The shield illustratively includes alternating layers of positive and negative permeabilities. The shield optionally includes a plurality of shields that may include top, bottom, and side shields.

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。

公开(公告)号：US20150154985A1

公开(公告)日：2015-06-04

申请号：US14615940

申请日：2015-02-06

Applicant: Seagate Technology LLC

Inventor： Eric Meloche ,  Bin Lu ,  Lixin Jia ,  Jianhua Xue ,  John David Westwood ,  Mark Anthony Gubbins ,  Alexandru Cazacu

IPC: G11B5/11

CPC classification number: G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315

Abstract: Data storage systems having barriers that may reduce erasure flux and increase write-ability are provided. Data storage systems include a writing element. The writing element has a write pole with a flare region. A magnetic flux barrier is located along the write pole flare region. The magnetic flux barrier is illustratively made from an in-plane magnetically anisotropic material that has an easy plane of magnetization. In another embodiment, a data storage system includes a writing element having an air bearing surface and a shield at the air bearing surface. The shield has a magnetic permeability of approximately zero. The shield illustratively includes alternating layers of positive and negative permeabilities. The shield optionally includes a plurality of shields that may include top, bottom, and side shields.

Abstract translation: 提供了具有可能减少擦除通量并增加写入能力的障碍的数据存储系统。 数据存储系统包括写入元件。 写入元件具有带闪光区域的写入极。 磁通势垒位于写磁极耀斑区域。 磁通势垒示意性地由具有易磁化平面的面内磁各向异性材料制成。 在另一个实施例中，数据存储系统包括具有空气轴承表面和在空气支承表面处的屏蔽的书写元件。 屏蔽具有大约零的磁导率。 屏蔽件示例性地包括正和负磁导率的交替层。 屏蔽件可选地包括可以包括顶部，底部和侧部屏蔽件的多个屏蔽件。