Method for making a perpendicular thermally-assisted recording (TAR) magnetic recording disk having a carbon segregant
文献类型：专利
| 作者 | MOSENDZ, OLEKSANDR; PISANA, SIMONE; REINER, JAMES WILLIAM; ROSE, FRANCK DREYFUS |
| 发表日期 | 2014-01-07 |
| 专利号 | US8623670 |
| 著作权人 | WESTERN DIGITAL TECHNOLOGIES, INC. |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Method for making a perpendicular thermally-assisted recording (TAR) magnetic recording disk having a carbon segregant |
| 英文摘要 | A method of making a thermally-assisted recording (TAR) disk includes etching an initial layer of generally spherically shaped FePt grains encapsulated by shells of graphitic carbon layers. The etching partially or completely removes the carbon layers on the tops of the shells, exposing the FePt grains while leaving carbon segregant material between the FePt grains. Additional Fe, Pt and C are then simultaneously deposited. The additional Fe and Pt grow on the exposed FePt grains and increase the vertical height of the grains, resulting in growth of columnar FePt grains. The additional C forms on top of the grains that together with the intergranular carbon form larger carbon shells. The resulting FePt grains thus have a generally columnar shape with perpendicular magnetic anisotropy, rather than a generally spherical shape. Lateral grain isolation is maintained by the carbon segregant remaining between the grains. |
| 公开日期 | 2014-01-07 |
| 申请日期 | 2012-07-15 |
| 状态 | 授权 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/38608]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | WESTERN DIGITAL TECHNOLOGIES, INC. |
| 推荐引用方式 GB/T 7714 | MOSENDZ, OLEKSANDR,PISANA, SIMONE,REINER, JAMES WILLIAM,et al. Method for making a perpendicular thermally-assisted recording (TAR) magnetic recording disk having a carbon segregant. US8623670. 2014-01-07. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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