| 发明名称 | Perpendicular magnetic recording medium and magnetic storage apparatus | ||
| 摘要 | A perpendicular magnetic recording medium includes a nonmagnetic substrate, an underlayer provided above the nonmagnetic substrate, and a perpendicular recording layer provided above the underlayer. The perpendicular recording layer includes a first magnetic layer including Co and Pt and having a granular structure, and a second magnetic layer having magnetic and ferroelectric properties. | ||
| 申请公布号 | US9013832(B2) | 申请公布日期 | 2015.04.21 |
| 申请号 | US201414297879 | 申请日期 | 2014.06.06 |
| 申请人 | Showa Denko K.K. | 发明人 | Sakawaki Akira;Yamane Akira |
| 分类号 | G11B5/66;G11B5/65 | 主分类号 | G11B5/66 |
| 代理机构 | IPUSA, PLLC | 代理人 | IPUSA, PLLC |
| 主权项 | 1. A perpendicular magnetic recording medium comprising: a nonmagnetic substrate; an underlayer provided above the nonmagnetic substrate; and a perpendicular recording layer provided above the underlayer, wherein the perpendicular recording layer includes a first magnetic layer including Co and Pt and having a granular structure, and a second magnetic layer having magnetic and ferroelectric properties, and wherein the second magnetic layer is made of a material selected from a group consisting of (Bi1-aBaa)FeO3, Bi(Fe1-bMnb)O3, and (Bi1-aBaa)(Fe1-bMnb)O3, where “a” is in a range of 0.3 to 0.5, and “b” is in a range of 0.3 to 0.8. | ||
| 地址 | Tokyo JP | ||