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Time-resolved X-ray diffraction (TR-XRD) is employed to investigate the lattice dynamics during thermal transport in FePt/Ag heat assisted magnetic recording (HAMR) media by varying Ag heat sink layer thickness. The x-ray de-convoluted results not only show the possibility to spatiotemporally separate the electron and phonon thermal transport, but also indicate that the thickness mainly has effects...
Temperature distribution of magnetic head is analyzed at various conditions. It is observed that the maximum temperature of the slider increases with the increase of media temperature but decreases with the increase of slider flight height and the disk rotational speeds. The maximum temperature rise of the slider is 51degC when the maximum temperature of media is 500degC, which should be taken into...
Conventional magnetic recording has been projected to suffer from superparamagnetic instabilities at high bit densities. Heat assisted magnetic recording (HAMR) is one of the promising approaches to overcome this problem. The track where writing is taking place is heated and cooled rapidly. The lubricant is therefore required to withstand repeated temperature changes from room temperature to above...
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