Heindl, Emanuel and Vancea, Johann and Woltersdorf, Georg and Back, Christian (2007) Hot-electron transport and magnetic anisotropy in epitaxial spin valves. Physical Review B (PRB) 76, p. 104435.
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We report on ballistic electron magnetic microscopy studies at room temperature using an epitaxially grown FeCo/Au/FeCo trilayer. Local hysteresis loops are obtained as a function of the in-plane magnetic field angle. In order to understand the underlying local magnetization behavior, the magnetic anisotropies were determined by ferromagnetic resonance. These results served as input for simulations of the hysteresis loops, which are compared to magneto-optic Kerr effect and ballistic electron magnetic microscopy data of the spin valve. In doing so, the relative magnetization configuration of the spin valve can be calculated as a function of the external magnetic field, and the magnetization behavior during the reversal can be explained. Since different magnetization configurations of the spin valve are available, epitaxial spin valves allow multimagnetocurrent values, when the magnetic field is applied along different directions.
|Institutions:||Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Christian Back|
|Projects:||SFB 689: Spinphänomene in reduzierten Dimensionen|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||15 Nov 2007|
|Last Modified:||19 Jul 2010 13:37|