Head and Granular Media for Thermally Assisted Magnetic Recording for Recording Density of 6 Tb/in $^{2}$
作者： Fumiko Akagi , Junko Ushiyama , Ayano Ando , Harukazu Miyamoto
DOI: 10.1109/TMAG.2012.2237018
关键词:
摘要: Optimum structural dimensions and characteristics of a granular thermally-assisted-magnetic-recording (TAMR) medium for recording density more than 6 Tb/in2 were investigated by using optical, thermal, Landau-Lifshitz-Gilbert (LLG) simulators. A sharp thermal profile in the could be obtained heat-sink layer with heat conductivity greater 100 W/m K. The ratio in-plane κ to out-of-plane κ(κxy/κg) thickness (TmMgO) MgO should both decreased. targets magnetic-write width (MWW) signal-to-noise (SNR) are 18 nm 12 dB Tb/in2, respectively. In case TmMgO nm, conditions achieving these ΔT 450 K Heff 1.36 MA/m. 5 600 1.4 MA/m (namely, MWW 6.0 Tb/in2); 550 1.48 16.5 6.5 500 1.58 15.0 7.2 Tb/in2). It is also clear that determinant factor MWW.
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