Method and system for providing a transducer having dual, ABS recessed auxiliary poles on opposite sides of a main pole with non-magnetic spacer adjoining back portion of main pole and positioned between auxiliary poles

A perpendicular magnetic recording (PMR) head having an air-bearing surface (ABS) configured to reside in proximity to a media during use, the magnetic recording head comprising:

• a main pole including pole tip occupying a portion of the ABS and a back edge distal from the ABS;
• a first auxiliary pole having a first front recessed a first distance from the ABS, a first back portion, a first thickness, a first saturation magnetization of at least one and not more than 2.3 T, and being magnetically coupled with the main pole;
• a second auxiliary pole having a second front recessed a second distance from the ABS, a second back portion, a second thickness substantially equal to the first thickness, and a second saturation magnetization at least 1.8 and not more than 2 T, and being magnetically coupled with the main pole, a portion of the main pole distal from the ABS residing between the first auxiliary pole and the second auxiliary pole;
• a backgap magnetically coupling the first back portion of the first auxiliary pole with the second back portion of the second auxiliary pole;
• a nonmagnetic spacer adjoining the back edge of the main pole, residing between the first auxiliary pole and the second auxiliary pole;
• a return pole having a pedestal and magnetically coupled with the first auxiliary pole and the second auxiliary pole through the backgap, the pedestal having a back surface, the second front of the second auxiliary pole being at least 0.5 micron from the back surface of the pedestal;
• at least one helical coil for energizing the main pole.

A method for providing a magnetic recording head having an air-bearing surface (ABS) configured to reside in proximity to a media during use, the method comprising:

• providing a main pole including pole tip occupying a portion of the ABS and a back edge distal from the ABS;
• providing a first auxiliary pole having a first front recessed from the ABS and a first back portion, the first auxiliary pole being magnetically coupled with the main pole;
• providing a second auxiliary pole having a second front recessed from the ABS and a second back portion, a portion of the main pole distal from the ABS residing between the first auxiliary pole and the second auxiliary pole, the second auxiliary pole being magnetically coupled with the main pole;
• providing a backgap magnetically coupling the first back portion of the first auxiliary pole with the second back portion of the second auxiliary pole;
• providing a nonmagnetic spacer adjoining the back edge of the main pole, residing between the first auxiliary pole and the second auxiliary pole;
• and
• providing at least one coil for energizing the main pole.