Christopher M Platt

US Patent:

6740398, May 25, 2004

Filed:

Nov 9, 2001

Appl. No.:

10/008646

Inventors:

Christopher Loren Platt - Pittsburgh PA

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 565

US Classification:

428332, 428692, 428694 TS

Abstract:

Magnetic films comprising iridium, manganese and nitrogen (IrMnN) are disclosed. Multi-layer structures including ferromagnetic layers deposited on the IrMnN films are also disclosed. The IrMnN films have a (200) texture and may act as seed layers and/or exchange biasing layers for the ferromagnetic layers deposited thereon. The multi-layer structures are useful in applications such as read sensors for magnetic recording heads and soft magnetic underlayers for perpendicular magnetic recording media.

US Patent:

20060105203, May 18, 2006

Filed:

Nov 15, 2004

Appl. No.:

10/989030

Inventors:

Lei Li - Pittsburgh PA, US
Christopher Platt - Pittsburgh PA, US
Yiao-Tee Hsia - Wexford PA, US

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 5/706
C23C 14/32
B05D 5/12
B05D 1/02
B05D 1/18

US Classification:

428833000, 428848100, 427127000, 204192100, 427256000, 427421100, 427430100

Abstract:

A recording medium for heat assisted magnetic recording includes a magnetic disc having a data zone portion and a non-data zone portion. A liquid lubricant is disposed on the non-data zone portion, and a solid lubricant disposed on the data zone portion. In one embodiment, the solid lubricant has a high thermal stability relative to the liquid lubricant.