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Field Orientation Dependence of Magnetoresistance in Spin-Dependent Tunnel Junctions.
- Source :
-
IEEE Transactions on Magnetics . Feb2005, Vol. 41 Issue 2, p896-898. 3p. - Publication Year :
- 2005
-
Abstract
- The dependence of magnetotransport on field orientation is an important issue in spintronics-related devices where the applied field is not necessarily in the ideal field-in-plane (FIP) geometry. In this study, we perform tunneling magnetoresistance (TMR) measurements on Co-Al2 O3-CoFe-NiFe spin-dependent tunnel (SDT) junctions prepared at different conditions with varying field orientation ranging from FIP to field-perpendicular-to-plane (FPP). The TMR ratio decreases drastically, whereas the switching field of Co increases when the field direction is set close to FPP. Furthermore, in a situation near FPP, a peculiar TMR looping behavior is observed for one set of samples. Interface effect is thought to be related. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189464
- Volume :
- 41
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Magnetics
- Publication Type :
- Academic Journal
- Accession number :
- 16213667
- Full Text :
- https://doi.org/10.1109/TMAG.2004.842082