Write head with self-cross biased pole for high speed magnetic recording

A magnetic write head for magnetic data recording, comprising:

• a magnetic pole having an axis, and extending to an air bearing surface;
• a write coil configured to induce a magnetic flux in the magnetic pole;
• a magnetic cross yoke, configured to induce a cross magnetic field that passes through the magnetic pole and that is substantially perpendicular to the axis of the magnetic pole and substantially perpendicular to a direction of a data track to be written by the write head, the magnetic cross yoke being recessed from the air bearing surface;
• and
• a magnetomotive force for inducing a magnetic flux in the cross yoke.

A magnetic write head for magnetic data recording, comprising:

• a magnetic pole having a pole tip portion that extends to an air bearing surface;
• a write coil configured to induce a magnetic flux in the magnetic pole;
• a magnetic cross yoke having first and second ends defining a gap therebetween, the gap extending across the pole tip portion of the magnetic pole, the magnetic yoke being configured to induce a magnetic cross field that extends across the gap in a direction that is perpendicular to a data track to be written by the write head, the magnetic cross yoke being recessed from the air bearing surface;
• and
• a magnetomotive force for inducing a magnetic flux in the cross yoke.

A magnetic write head for perpendicular magnetic recording, comprising:

• a magnetic write pole having a pole tip region disposed toward an air bearing surface (ABS), the pole tip region having first and second laterally opposed sides and terminating in an end disposed at the ABS;
• a magnetic return pole having an end disposed toward the ABS;
• a magnetic back gap structure magnetically connected with the return pole and the write pole in a region away from the ABS;
• an electrically conductive write coil that wraps around the back gap structure and that, when electrical current flows through the coil, induces a magnetic flux through the return pole, back gap structure and write pole, resulting in a magnetic write field being emitted from the end of the write pole;
• and
• a magnetic cross yoke surrounding and separated from the write pole and terminating in first and second ends that are located at either side of the pole tip region of the write pole, the magnetic cross yoke being recessed from the air bearing surface (ABS);
• wherein the cross yoke produces a magnetic cross field that extends across the pole tip region of the write pole.