%0 Journal Article
	%A P. Tueku and  P. Supnithi and  R. Wongsathan
	%D 2014
	%J International Journal of Electronics and Communication Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 87, 2014
	%T Target and Equalizer Design for Perpendicular Heat-Assisted Magnetic Recording
	%U https://publications.waset.org/pdf/9997833
	%V 87
	%X Heat-Assisted Magnetic Recording (HAMR) is one of the leading technologies identified to enable areal density beyond 1 Tb/in2 of magnetic recording systems. A key challenge to HAMR designing is accuracy of positioning, timing of the firing laser, power of the laser, thermo-magnetic head, head-disk interface and cooling system. We study the effect of HAMR parameters on transition center and transition width. The HAMR is model using Thermal Williams-Comstock (TWC) and microtrack model. The target and equalizer are designed by the minimum mean square error (MMSE). The result shows that the unit energy constraint outperforms other constraints.

	%P 541 - 547