Heat Assisted Magnetic Recording Performance and Integration Challenges


REA C., SCHOLZ W., Cao L. , PENG C., BLABER M., HOHLFELD J., ...More

Conference on Optical Data Storage held as part of the SPIE Optics + Photonics, California, United States Of America, 18 - 19 August 2014, vol.9201 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 9201
  • Doi Number: 10.1117/12.2064537
  • City: California
  • Country: United States Of America

Abstract

Recent recording areal density and integrated drive performance demonstrations using Heat Assisted Magnetic Recording (HAMR) suggest that it is a viable technology to succeed conventional magnetic recording. However challenges still remain for the near field transducer, in particular reliability and sufficient thermal confinement. We explore a new NFT design, Near field Transducer Gap (NTG), which offers the potential to mitigate some of the issues in track confinement and thermal profile compared to earlier published studies [4]. The design offers efficiency improvements, and the potential to reduce unwanted background light and heating that can lead to erasure in the writing track, and neighbors.