FePt-based exchange-coupled composite perpendicular recording media.
Conference
·
· IEEE Trans. Magn.
OSTI ID:979555
In order to demonstrate the strong and proper exchange coupling between bottom magnetic layer and capping magnetic layer in FePt-based exchange-coupled composite (ECC) perpendicular recording media, we have investigated the thermal stability, writability, degree of exchange coupling, and ECC gain factor of FePt-based ECC media as a function of the thickness of the capping FePt layer. With increasing the thickness of capping FePt layer, both thermal stability and media writability increase simultaneously as a result of the change from strong exchange coupling to proper exchange coupling. The proper exchange-coupled FePt ECC is a promising candidate for future high-density perpendicular recording.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 979555
- Report Number(s):
- ANL/XSD/CP-66007
- Conference Information:
- Journal Name: IEEE Trans. Magn. Journal Issue: 6 ; Jun. 2010 Journal Volume: 46
- Country of Publication:
- United States
- Language:
- ENGLISH
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