Magnetically biased write pole

摘要

An apparatus may be constructed with a magnetic element, such as a data transducing head. A first permanent magnet may be configured to bias the write pole to decrease remnant magnetization and erasure after write (EAW). The first permanent magnet can be separated from the write pole be a predetermined distance.

主权项

1. An apparatus comprising a first magnetically hard material separated from an air bearing surface (ABS) by a first non-zero distance and from a write pole by a second non-zero distance, a second magnetically hard material separated from the ABS, first magnetically hard material, and write pole, the first magnetically hard material positioned proximal a tapered surface of the write pole and the second magnetically hard material positioned proximal a non-tapered surface of the write pole to bias the write pole with a bias field oriented parallel with the ABS.