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5 September 2014 Heat assisted magnetic recording performance and integration challenges
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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.
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Chris Rea, Werner Scholz, Lina Cao, Chubing Peng, Martin Blaber, Julius Hohfeld, Weibin Chen, Heidi Olson, Mourad Benakli, Hua Zhou, Pu-Ling Lu, Nils Gokemeijer, Mike Seigler, Kaizhong Gao, Alexander Wu, Jan-Ulrich Thiele, Ganping Ju, and Edward Gage "Heat assisted magnetic recording performance and integration challenges", Proc. SPIE 9201, Optical Data Storage 2014, 92010K (5 September 2014); https://doi.org/10.1117/12.2064537
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