28 August 2014 Spin-dependent transport as a consequence of Pauli blockade in a degenerate electron gas
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Abstract
Degeneracy of a photoelectron gas is shown to strongly affect spin polarized electron transport since the Pauli principle dictates a concentration dependence of the spin stiffness and of the mobility. This causes a spin dependence of the diffusion constant D. A spin-dependence of D as large as 50 % is measured using polarized microluminescence imaging in p+ GaAs thin films, revealing a novel spin filter effect. The charge diffusion constant also depends on spin via a second order effect.
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F. Cadiz, F. Cadiz, D. Paget, D. Paget, A. C. H. Rowe, A. C. H. Rowe, "Spin-dependent transport as a consequence of Pauli blockade in a degenerate electron gas", Proc. SPIE 9167, Spintronics VII, 91670C (28 August 2014); doi: 10.1117/12.2060198; https://doi.org/10.1117/12.2060198
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