1. Numerical model of crossed Andreev reflection and charge imbalance.
- Author
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Webb, J. L., Hickey, B. J., and Burne, G.
- Subjects
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ANDREEV reflection , *CHARGE transfer , *SPIN valves , *MAGNETIC fields , *ELECTRODES , *INTERFACES (Physical sciences) , *NUMERICAL analysis , *MATHEMATICAL models , *ALUMINUM alloys - Abstract
We present a numerical model of local and nonlocal transport properties in a lateral spin valve structure consisting of two magnetic electrodes in contact with a third perpendicular superconducting electrode. By considering the transport paths for a single electron incident at the local F/S interface--in terms of probabilities of crossed or local Andreev reflection, elastic cotunneling, or quasiparticle transport--we show that this leads to nonlocal charge imbalance. We compare this model with experimental data from an aluminum-permalloy (Al/Py) lateral spin valve geometry device and demonstrate the effectiveness of this simple approach in replicating experimental behavior. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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