Title :
Texture-induced modulation noise and its impact on magnetic recording performance
Author :
Wu, Ernest Y. ; Peske, James V. ; Palmer, Dean C.
Author_Institution :
Storage Syst. Div., IBM Corp., Rochester, MN, USA
fDate :
11/1/1994 12:00:00 AM
Abstract :
The mechanical texturing of recording media which is necessary for good stiction characteristics can have an undesirable side effect on magnetic performance. A simple technique is described to measure the modulation noise caused by the texture in the substrate. Measurements made on CoPtCr media show a strong connection between the degree of modulation and the error rate
Keywords :
chromium alloys; cobalt alloys; magnetic recording noise; modulation; platinum alloys; surface texture; CoPtCr; error rate; magnetic recording; mechanical texturing; modulation noise; recording media; stiction; substrate texture; Bandwidth; Disk recording; Frequency; Low-frequency noise; Magnetic modulators; Magnetic noise; Magnetic recording; Magnetic separation; Noise level; Noise measurement;
Journal_Title :
Magnetics, IEEE Transactions on
