Patent ID: 9064508
Filing Date: 2015-06-23
Classification: G11B

Abstract:
1. A microwave-assisted magnetic recording head having a main pole and a trailing shield, comprising: a first spin-torque oscillator comprising a first magnetic layer, a first non-magnetic interlayer disposed on the first magnetic layer, and a second magnetic layer disposed on the first non-magnetic interlayer; a second spin-torque oscillator comprising a third magnetic layer, a second non-magnetic interlayer disposed on the third magnetic layer, and a fourth magnetic layer disposed on the second non-magnetic interlayer; and a spin torque shield layer interposed between the first spin-torque oscillator and the second spin-torque oscillator, wherein an applied current is adapted to flow in a direction from the second magnetic layer to the first magnetic layer, and from the fourth magnetic layer to the third magnetic layer, wherein the spin torque shield layer comprises Ru or Rh.