Magnetic head with a heating element between the read and write element and method of manufacturing thereof

A magnetic head, having:

• a write element;
• a read element;
• and
• a heating element provided between the write element and the read element,
• wherein when power is not applied to the heating element, a portion of the ABS of the magnetic head facing a magnetic disk close to the heating element has a concave shape, and
• wherein a depth of a deepest portion of the concave shape is about 5 nm to about 20 nm, and an average diameter of the concave shape at a portion of the plot corresponding to d1/2 is less than about 20 μm.

A method of manufacturing a magnetic head having a write element, a read element, and a heating element provided between the write element and the read element, the method comprising:

• cutting into strip row bars a wafer substrate on which a plurality of the write elements and a plurality of the read elements are formed, such that the write elements and the read elements are arranged in a line;
• and
• polishing each cut surface such that a dimension in a direction perpendicular to the cut surface of each of the write elements and the read elements has a desired value, and a flatness of each of the write elements and the read elements has a desired degree of flatness,
• wherein pulsed power with a constant interval is applied to the heating element when less than about 10 nm is remaining to remove via polishing.