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THREE-DIMENSIONAL MAGNETIC RECORDING AND REPRODUCING APPARATUS

  • US 20120224283A1
  • Filed: 03/09/2012
  • Published: 09/06/2012
  • Est. Priority Date: 09/11/2009
  • Status: Active Grant
First Claim
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1. A three-dimensional magnetic recording and reproducing apparatus, comprising:

  • a magnetic head comprising a spin-torque oscillator, the spin-torque oscillator comprising a free layer, a first non-magnetic layer and a fixed layer, magnetization of the free layer being rotatable, the first non-magnetic layer being laminated on the free layer, the fixed layer being laminated on the first non-magnetic layer, a magnetization direction of the fixed layer being fixed; and

    a magnetic storage medium comprising a plurality of first magnetic layers formed of magnetic materials having different resonant frequencies, each of the first magnetic layers being formed of an in-plane magnetization film and having recording tracks.

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