A magnetic head part is constituted by a reproducing head part having a
GMR device and a recording head part acting as an inductive
electromagnetic transducer which are laminated on a support. The magnetic
head part further comprises a heater. One of poles of the heater is
electrically connected to a heater electrode pad disposed on a first
surface of a head slider. The other pole is electrically connected to a
substrate constituting the support, and is energized by way of a second
surface of the head slider.