RECORDING HEADS USING MAGNETIC FIELDS GENERATED LOCALLY FROM HIGH CURRENT DENSITIES IN A THIN FILM WIRE

摘要

A method of recording information bits in a magnetic storage medium (58), the method comprising positioning a first conductor (50) adjacent to a magnetic recording medium (58), the conductor having a width and a length, wherein a distance between the first conductor and the magnetic recording medium is less than or equal to the width and the length, and passing a first current through the conductor of sufficient magnitude to produce a magnetic field in the magnetic medium greater than one Tesla and having a magnetic field gradient in a cross track direction and a down track direction greater than 100 Oe/nm over a bit dimension. Magnetic recording heads (48) and disc drives (10) that record data in accordance with the method are also included.