| 摘要 |
PROBLEM TO BE SOLVED: To provide: a spin torque oscillator capable of making stabilized oscillation with a small current density and a high in-plane RF magnetic field strength; a magnetic recording head; a magnetic head assembly; and a magnetic recorder. SOLUTION: The spin torque oscillator has a magnetic film made of a magnetic substance of a body-centered cubic structure arranging its ä110} plane almost parallel with the principal plane, a first magnetic layer whose magnetic moment turning around the axis almost perpendicular to the principal plane, a second magnetic layer made of a magnetic substance, and a first non-magnetic layer made of a non-magnetic material and stacked between the first and second magnetic layers. Further, a magnetic field is applied in the direction substantially perpendicular to the principal plane, and a current is fed in the direction perpendicular to the principal plane. COPYRIGHT: (C)2010,JPO&INPIT
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