Thin-film magnetic head for perpendicular (vertical) recording

Claim 1

A magnetic thin-layer head comprising a stratified build-up on a nonmagnetic substrate for a recording medium, the recording medium being provided with a magnetizable storage layer into which information can be written along a track by perpendicular or vertical magnetization of the storage layer, the magnetic head having a ring-shaped conduction body for carrying magnetic flux, the conduction body having two magnet legs, ends of the magnet legs facing the recording medium comprising magnetic poles, the poles being arranged in tandem as seen in the direction of motion of the head relative to the recording medium, and having a predetermined distance from each other, an at least largely flat write/read coil winding being further provided having a plurality of turns, said turns of said winding extending through a space formed between the magnet legs, and further comprising an additional coil winding provided only for executing a write function together with said write/read coil winding, said additional coil winding having at least one turn which is disposed at least partially in a region located outside of the ring-shaped conduction body and being separated from said write/read coil winding by one of said two magnet legs, said one leg serving as a leg for executing substantially alone said write function, the current in said write/read coil winding having a first current flow direction and the current in said additional coil winding having a current flow direction opposite to said first current flow direction during execution of said write function.