Patent ID: 9378759
Filing Date: 2016-06-28
CPC Classification: G11B

Claim Text:
1. A spin torque oscillator, comprising: an underlayer; a spin polarization layer comprised of a high perpendicular magnetic anisotropy material, the spin polarization layer having a large effective perpendicular magnetic anisotropy field; an interlayer; a field generation layer; and a capping layer; wherein a coil is adapted to generate a head-gap field; and wherein a power supply is adapted to apply a current to flow in a direction from the field generation layer to the spin polarization layer resulting in a magnetization direction of the spin polarization layer anti-parallel to the head-gap field, and wherein the spin polarization layer has a lower magnetic moment than the field generation layer, wherein the spin polarization layer has a magnetic moment lower than about 1 T and the field generation layer has a magnetic moment greater than about 1 T.