DocumentCode
1261905
Title
Noise and magnetic domain fluctuations in spin-valve GMR heads
Author
Hardner, H.T. ; Hurben, M.J. ; Tabat, N.
Author_Institution
Seagate Technol., Minneapolis, MN, USA
Volume
35
Issue
5
fYear
1999
fDate
9/1/1999 12:00:00 AM
Firstpage
2592
Lastpage
2594
Abstract
Random telegraph noise (RTN) can be observed in the voltage across some spin valve heads over particular ranges of bias current, magnetic field and temperature. The detailed dependence of the RTN signal on these parameters demonstrates that the noise is due to thermally activated magnetic domain fluctuations. Further, a comparison of the effects of applied magnetic field and bias current provides information about the physical location of the magnetic domains within the head
Keywords
giant magnetoresistance; magnetic domains; magnetic heads; magnetic recording noise; spin valves; magnetic domain fluctuations; random telegraph noise; spin valve GMR head; thermal activation; Fluctuations; Giant magnetoresistance; Magnetic domains; Magnetic field measurement; Magnetic heads; Magnetic noise; Spin valves; Telegraphy; Temperature sensors; Voltage;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.800900
Filename
800900
Link To Document