Magnetic head including a return path section

A magnetic head comprising:

• a medium facing surface configured to face a recording medium;
• a coil configured to generate a magnetic field corresponding to data to be written on the recording medium;
• a main pole having an end face located in the medium facing surface, the main pole being configured to pass a magnetic flux corresponding to the magnetic field generated by the coil and to generate a write magnetic field for writing the data on the recording medium;
• a write shield formed of a magnetic material and having a shield end face located in the medium facing surface;
• a lower return path section formed of a magnetic material;
• an accommodation section formed of a nonmagnetic material and accommodating at least part of the lower return path section;
• and
• a substrate having a top surface, wherein
• the coil, the main pole, the write shield, the lower return path section and the accommodation section are located above the top surface of the substrate,
• the shield end face includes a first end face portion located farther from the top surface of the substrate than the end face of the main pole, and a second end face portion located closer to the top surface of the substrate than the end face of the main pole,
• the lower return path section is located between the main pole and the top surface of the substrate and connects a portion of the main pole located away from the medium facing surface to the write shield so that a lower space is defined by the main pole, the write shield and the lower return path section,
• the coil includes a coil element extending to pass through the lower space,
• no portion of the coil other than the coil element lies in the lower space,
• the accommodation section includes a first portion located closer to the medium facing surface than the coil element and interposed between the lower return path section and the medium facing surface, and a second portion located farther from the medium facing surface than the coil element,
• the first portion has a first inclined surface facing the lower return path section,
• the second portion has a second inclined surface facing the lower return path section,
• the coil element has a third inclined surface opposed to the first inclined surface, and a fourth inclined surface opposed to the second inclined surface,
• each of the first to fourth inclined surfaces has a top end farthest from the top surface of the substrate and a bottom end closest to the top surface of the substrate,
• each of the first and third inclined surfaces is inclined with respect to the medium facing surface such that a distance from the medium facing surface to the bottom end is greater than a distance from the medium facing surface to the top end,
• each of the second and fourth inclined surfaces is inclined with respect to the medium facing surface such that the distance from the medium facing surface to the bottom end is smaller than the distance from the medium facing surface to the top end, and
• the lower return path section includes a first inclined portion located between the first inclined surface and the third inclined surface and extending along the first inclined surface, and a second inclined portion located between the second inclined surface and the fourth inclined surface and extending along the second inclined surface.