PERPENDICULAR MAGNETIC RECORDING HEAD, METHOD FOR MANUFACTURING THE SAME, AND MAGNETIC RECORDING AND REPRODUCING DEVICE

PROBLEM TO BE SOLVED: To enhance a magnetic field in a trailing side with respect to a traveling direction of a magnetic recording medium so as to increase a magnetic gradient and to obtain a high magnetic field intensity.SOLUTION: The main magnetic pole of a perpendicular magnetic recording head includes: a throat height portion, in which the air bearing surface placed in an air bearing side has a shape of an inverted trapezoid having a width W1 in a trailing side and a width W4 in a leading side satisfying a relationship of W1>W4>0; and a flare portion, which is connected to the throat height portion and has a width broadening upward in a height direction of the head. The magnetic pole also has a magnetic portion including: a first portion where the film thickness increases stepwise or resulting in a tapered shape at an inclination angle θ1 from the air bearing surface in the leading side of a writing magnetic pole of the main magnetic pole in the height direction of the head element; a second portion where the film thickness increases stepwise or resulting in a tapered shape at an inclination angle θ2 from the flare portion in the height direction; and a portion beyond the second portion, having a fixed film thickness.