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In-plane magnetic anisotropies of sputtered Co0.7Fe0.3 films on AlGaAs(001) spin light emitting diode heterostructures.
- Source :
-
Journal of Applied Physics . 5/1/2007, Vol. 101 Issue 9, p09D106. 3p. 1 Diagram, 3 Graphs. - Publication Year :
- 2007
-
Abstract
- The in-plane magnetic properties of Co0.7Fe0.3 films sputtered onto Al0.1Ga0.9As and Al0.1Ga0.9As/GaAs epilayers are consistent with a strongly oriented bcc crystal structure with clean metal-semiconductor interfaces. However, the interface induced uniaxial magnetic anisotropy is oriented along one of the in-plane <100>, rather than <110>, as is the case in molecular beam epitaxy—grown films. Resonant x-ray measurements show interfacial magnetic disorder in films on Al0.1Ga0.9As, which accounts for the difference in magnetic anisotropy behavior between samples on Al0.1Ga0.9As and Al0.1Ga0.9As/GaAs epilayer substrates, and which may have significant consequences for the spin-injection efficiency across such interfaces. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 101
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 25115110
- Full Text :
- https://doi.org/10.1063/1.2709494