Multi reader head having a varying gap layer laminated between readers

A multi reader head, comprising:

• a plurality of readers laminated via a gap layer, wherein
• each of the readers includes a structure in which a current-perpendicular-to-plane (CPP) type magneto-resistive effect element, where a current flows along a lamination direction, is interposed between a pair of shields that function as an electrode, respectively, from both sides of the CPP type magneto-resistive effect element in the lamination direction,
• a distance between the shields that are opposed to each other via the gap layer of the readers that are adjacent one another in the lamination direction is not constant, but includes a portion with a greater distance between the shields and another portion with a smaller distance between the shields, the portion with a greater distance between the shields is situated farther away from a center on an air bearing surface opposing a recording medium in the magneto-resistive effect element compared to the portion with a smaller distance between the shields.