Head and Media Challenges for 3 Tb/in $^{\boldsymbol {2}}$ Microwave-Assisted Magnetic Recording

  title={Head and Media Challenges for 3 Tb/in \$^\{\boldsymbol \{2\}\}\$  Microwave-Assisted Magnetic Recording},
  author={Michael L. Mallary and Kumar Srinivasan and Gerardo A. Bertero and Dan Wolf and Christian R. Kaiser and M. R. Chaplin and Carl F. Elliott and Mahendra Pakala and Qunwen Leng and Francis H. Liu and Yiming Wang and T. J. Silva and Justin M. Shaw and H. T. Nembach},
  journal={IEEE Transactions on Magnetics},
A specific design for microwave assisted magnetic recording (MAMR) at about 3 Tb/in2 (0.47 Tb/cm2 or 4.7 Pb/m2) is discussed in detail to highlight the challenges of MAMR and to contrast its requirements with conventional perpendicular magnetic recording (PMR). In particular, it has been determined that MAMR-optimized media should have: higher damping than today's PMR media upon which ferromagnetic resonance measurements are reported, very low intergranular exchange coupling, and somewhat… 
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