Low-frequency noise in NiFe/Cu spin-valves

We report one of the first observations of low-frequency noise of NiFe/Cu spin-valves. Although the observed noise is very low in comparison to multilayer systems, it is typically concentrated in the linear response region where such devices are expected to operate. Increased noise is also associate...

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Bibliographic Details
Published inIEEE transactions on magnetics Vol. 33; no. 5; pp. 3586 - 3588
Main Authors Kirschenbaum, L.S., Rogers, C.T., Russek, S.E., Kim, Y.K.
Format Journal Article
LanguageEnglish
Published IEEE 01.09.1997
Subjects
Battery charge measurement
Fluctuations
Geometry
Low-frequency noise
Magnetic noise
Magnetoresistance
Magnetostatics
NIST
Noise level
Thermal resistance
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Summary:We report one of the first observations of low-frequency noise of NiFe/Cu spin-valves. Although the observed noise is very low in comparison to multilayer systems, it is typically concentrated in the linear response region where such devices are expected to operate. Increased noise is also associated with Barkhausen jumps in the magnetoresistance trace. In devices one micrometer high, structures start to appear in the noise spectra as a perturbation to the simple 1/f-like noise observed in larger devices.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-9464
1941-0069
DOI:10.1109/20.619505