公开(公告)号：US09799363B2

公开(公告)日：2017-10-24

申请号：US13802354

申请日：2013-03-13

Applicant: Seagate Technology LLC

Inventor： Xi Chen ,  Yingguo Peng ,  Jan-Ulrich Thiele ,  Ganping Ju ,  Thomas Roscamp

IPC: G11B5/65 ,  G11B5/716 ,  G11B5/68 ,  G11B5/66

CPC classification number: G11B5/716 ,  G11B5/65 ,  G11B5/66 ,  G11B5/68

Abstract: A magnetic stack includes a substrate and a magnetic recording layer disposed over the substrate. The magnetic recording layer comprises magnetic crystalline grains and a segregant disposed between grain boundaries of the crystalline grains. One or both of the magnetic crystalline grains and the segregant are doped with a rare earth or transition metal dopant in an amount that provides the magnetic recording layer with a magnetic damping value, α, between about 0.1 to about 1.

公开(公告)号：US20140272473A1

公开(公告)日：2014-09-18

申请号：US13802354

申请日：2013-03-13

Applicant: Seagate Technology LLC

Inventor： Xi Chen ,  Yingguo Peng ,  Jan-Ulrich Thiele ,  Ganping Ju ,  Thomas Roscamp

IPC: G11B5/716 ,  G11B5/68

CPC classification number: G11B5/716 ,  G11B5/65 ,  G11B5/66 ,  G11B5/68

Abstract: A magnetic stack includes a substrate and a magnetic recording layer disposed over the substrate. The magnetic recording layer comprises magnetic crystalline grains and a segregant disposed between grain boundaries of the crystalline grains. One or both of the magnetic crystalline grains and the segregant are doped with a rare earth or transition metal dopant in an amount that provides the magnetic recording layer with a magnetic damping value, α, between about 0.1 to about 1.

Abstract translation: 磁性堆叠包括衬底和设置在衬底上的磁记录层。 磁记录层包括磁晶粒和设置在晶粒的晶界之间的分离器。 磁性晶粒和分离器中的一个或两个掺杂有稀土或过渡金属掺杂剂，其量使磁记录层具有约0.1至约1之间的磁阻尼值α。