Thermal dependence of MR signal on slider flying state

We develop a new three dimensional (3-D) heat transfer slider model and stu dy the thermal dependence of the MR signal on different slider flying state s, Although it is generally believed that the thermal effect on the MR sign al results mainly from a change in the flying height of the head, and that the MR temperature increases with increasing flying height, this is not alw ays the case. We find that for some types of air bearing design, when the f lying height is very small the MR temperature first decreases with increasi ng flying height and then increases with increasing flying height. New expe rimental results reported here are consistent with simulations incorporatin g the heat transfer model.