BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a cross-sectional view for illustrating the configuration of a magnetic head for perpendicular magnetic recording of an embodiment of the invention.
FIG. 2 is a front view of the medium facing surface of the magnetic head of FIG. 1.
FIG. 3 is a top view of the pole layer of the magnetic head of FIG. 1.
FIG. 4 is a perspective view illustrating a slider that a head gimbal assembly of the embodiment of the invention includes.
FIG. 5 is a perspective view illustrating a head arm assembly of the embodiment of the invention.
FIG. 6 is a view for illustrating a main part of a magnetic disk drive of the embodiment of the invention.
FIG. 7 is a top view of the magnetic disk drive of the embodiment of the invention.
FIG. 8 is a view for illustrating a first example of a state of magnetization in an end face of a track width defining portion.
FIG. 9 is a view for illustrating a second example of a state of magnetization in the end face of the track width defining portion.
FIG. 10 is a view for illustrating a third example of a state of magnetization in the end face of the track width defining portion.
FIG. 11 is a view for illustrating a fourth example of a state of magnetization in the end face of the track width defining portion.
FIG. 12 is a view for illustrating a fifth example of a state of magnetization in the end face of the track width defining portion.
FIG. 13 is a view for illustrating a sixth example of a state of magnetization in the end face of the track width defining portion.