Title :
Heat-Assisted Magnetic Recording
Author :
Rottmayer, Robert E. ; Batra, Sharat ; Buechel, Dorothea ; Challener, William A. ; Hohlfeld, Julius ; Kubota, Yukiko ; Li, Lei ; Lu, Bin ; Mihalcea, Christophe ; Mountfield, Keith ; Pelhos, Kalman ; Peng, Chubing ; Rausch, Tim ; Seigler, Michael A. ; Well
Author_Institution :
Seagate Technol., Pittsburgh, PA
Abstract :
Due to the limits of conventional perpendicular magnetic recording, it appears that alternative technologies are needed at areal densities >500 Gb/in2. Heat-assisted magnetic recording (HAMR) is a promising approach to extend areal densities to 1 Tb/in2 and beyond. All of the unique components necessary for a working HAMR system have been demonstrated. Although HAMR permits writing on high Hc media with lower magnetic fields and can produce higher write gradients than conventional magnetic recording, head/media spacing and the development of high Hc media with small grains remains challenging
Keywords :
magnetic heads; perpendicular magnetic recording; HAMR system; head-media spacing; heat-assisted magnetic recording; magnetic fields; perpendicular magnetic recording; write gradients; Costs; Disk recording; Heat-assisted magnetic recording; Jitter; Kalman filters; Magnetic heads; Magnetic materials; Magnetic recording; Magnetooptic recording; Perpendicular magnetic recording; Heat-assisted magnetic recording (HAMR); high-density recording;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.879572
