Floating magnetic head with variable chamfered surface

A floating magnetic head for transducing information upon a recording surface of a magnetic medium during relative movement between the magnetic head and the recording surface, the magnetic head comprising:

• a slider body having a rectangular shape and a forward edge, a trailing edge, first and second longitudinal side edges, a bottom side facing the magnetic medium, and a top side opposite the bottom side;
• first and second longitudinal side rails projecting from the bottom side of the slider body toward the magnetic medium, the side rails positioned along the first and second side edges of the slider body, respectively, each rail further having a forward edge and a trailing edge positioned proximate the forward and trailing edges of the slider body, respectively, and a planar bottom surface facing and generally parallel to the recording surface of the magnetic medium and generally perpendicular to the forward and trailing edges of the side rails;
• a center longitudinal rail projecting from the bottom side of the slider toward the magnetic medium, positioned between, and parallel to, the first and second side rails, the center rail having a forward edge, a trailing edge, two side edges, and a generally planar bottom surface facing the magnetic medium, the bottom surface being generally parallel to the surface of the magnetic medium;
• a magnetic core longitudinally aligned with the center rail and positioned externally of the slider body and proximate the trailing edge of the center rail, the core having a bottom surface facing the magnetic medium with a first and second portion, the first portion being substantially coplanar with the bottom surface of the center rail, and the second portion sloping away from the magnetic medium and the slider body;
• a magnetic recording/reproducing gap in the magnetic core positioned between the first portion of the core and the slider body;
• and
• a planar chamfer section positioned between the planar bottom surface and the trailing edge of at least one of the side rails, the planar chamfer section sloping away from the magnetic medium and the slider body at a predetermined chamfer angle .theta..sub.1 ;
• the planar chamfer section intersecting the plane of the bottom surface of the rail to form a lower edge, the lower edge forms a line, which intersects a line perpendicular to the longitudinal side edge to form an acute azimuth angle .theta.;
• the planar chamfered section substantially increasing the reliability of wave reproduction by limiting undesired noise and minimizing disturbances in reproduced waveforms.