High frequency data writer field generator device

摘要

A data writing device may be constructed and operated with at least a data writer that has at least a write pole and a magnetic feature. A controller may selectively activate the magnetic feature to magnetically oscillate and produce a radio frequency signal proximal the write pole on an air bearing surface (ABS).

主权项

1. An apparatus comprising a data writer comprising a write pole separated from a magnetic feature by a magnetic shield on an air bearing surface (ABS), a controller configured to heat and cool the magnetic feature to magnetically oscillate the magnetic shield to produce a radio frequency signal proximal the write pole on the ABS.