Invention Grant
- Patent Title: High coercivity longitudinal recording media and method for its preparation
- Patent Title (中): 高矫顽力纵向记录介质及其制备方法
-
Application No.: US78951Application Date: 1998-05-14
-
Publication No.: US6139907APublication Date: 2000-10-31
- Inventor: David J. Sellmyer , Chun-Ping Luo
- Applicant: David J. Sellmyer , Chun-Ping Luo
- Applicant Address: NE Lincoln
- Assignee: Board of Regents, University of Nebraska-Lincoln
- Current Assignee: Board of Regents, University of Nebraska-Lincoln
- Current Assignee Address: NE Lincoln
- Main IPC: G11B5/64
- IPC: G11B5/64 ; G11B5/851 ; G11B5/66
Abstract:
A high coercivity longitudinal recording media comprising FePt or similar thin films that are vacuum deposited by RF and DC sputtering. The as-deposited multilayered films are subjected to vacuum annealing. Due to the formation of the ordered phases of FePt or the like, which have very high crystal anisotropy, the annealed FePt films have large coercivity and fine grain size, suitable for use as ultra-high density magnetic recording media.
Public/Granted literature
- USD398801S Wall mounted planter Public/Granted day:1998-09-29
Information query
IPC分类:
