Abstract
Heat-assisted magnetic recording (HAMR) is a new approach, which makes the head write data easily under a low magnetic field using a laser to heat the magnetic media to reduce its coercivity, thus, it is considered to be the next generation of higher recording areal density technology. In this paper, a three-dimensional HAMR finite-element model of hard disk drive (HDD) is developed. The temperature distributions around the laser-heating area on disk surface are investigated when the HDD is filled with air and helium. The cooling effects of the disk rotation and the heat convection in head-disk interface (HDI) are also analyzed.
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This work is supported by the Fundamental Research Funds for the Central Universities of China (2042015kf0193).
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Zhang, G., Li, H., Shen, S. et al. Simulation of temperature around laser-heating media in heat-assisted magnetic recording. Microsyst Technol 22, 2877–2882 (2016). https://doi.org/10.1007/s00542-015-2654-9
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DOI: https://doi.org/10.1007/s00542-015-2654-9