Time resolved scanning Kerr microscopy of hard disk writer structures with a multilayered yoke
Applied Physics Letters
American Institute of Physics (AIP)
This is the final version of the article. Available from American Institute of Physics via the DOI in this record.
Partially built hard disk writer structures with a multilayered yoke formed from 4 repeats of a NiFe(∼1 nm)/CoFe(50 nm) bilayer were studied by time and vector resolved scanning Kerr microscopy. Dynamic images of the in-plane magnetization suggest an underlying closure domain equilibrium state. This state is found to be modified by application of a bias magnetic field and also during pulse cycling, leading to different magnetization rotation and relaxation behavior within the tip region. © 2013 AIP Publishing LLC.
The authors gratefully acknowledge financial support from the Seagate Plan.
The erratum is available in ORE at http://hdl.handle.net/10871/21966
Vol. 102 (16), article 162407