Abstract
We report the generation of highly spin-polarized currents and their detection in cascaded InAs spin filters via transport measurements below 300 mK. The intrinsic spin-Hall effect is used in the first filter to generate two oppositely spin-polarized currents. From the conductance asymmetry at the outputs of the second filter high spin polarizations are determined in all-electrical measurements. The experiments are in good agreement with ballistic quantum transport simulations, which mimic the double-Y-shaped structure constricted by quantum-point contacts.
Original language | English (US) |
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Article number | 093714 |
Journal | Journal of Applied Physics |
Volume | 105 |
Issue number | 9 |
DOIs | |
State | Published - 2009 |
ASJC Scopus subject areas
- General Physics and Astronomy