发明名称 |
Spin torque oscillator, magnetic recording head, magnetic head assembly and magnetic recording apparatus |
摘要 |
A spin torque oscillator includes a first magnetic layer, a second magnetic layer and a first nonmagnetic layer. The first magnetic layer includes a magnetic film of a magnetic material with a body-centered cubic (bcc) structure and an oriented {110} plane of the body-centered cubic structure, the oriented {110} plane being oriented substantially parallel to a principal plane of the magnetic film. The first nonmagnetic layer is disposed between the first magnetic layer and the second magnetic layer. In addition, a magnetic moment in the magnetic film precesses around an axis substantially parallel to the principal plane. Furthermore, a magnetic field is applied in a direction substantially perpendicular to the principal plane, and a current is passed perpendicularly to the principal plane. |
申请公布号 |
US8325442(B2) |
申请公布日期 |
2012.12.04 |
申请号 |
US20090591055 |
申请日期 |
2009.11.05 |
申请人 |
KOUI KATSUHIKO;SHIMIZU MARIKO;YAMADA KENICHIRO;KABUSHIKI KAISHA TOSHIBA |
发明人 |
KOUI KATSUHIKO;SHIMIZU MARIKO;YAMADA KENICHIRO |
分类号 |
G11B5/33 |
主分类号 |
G11B5/33 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|