Abstract
We propose an electronic spin-filter device that uses a nonmagnetic triple barrier resonant tunneling diode (TB-RTD). This device combines the spin-split resonant tunneling levels induced by the Rashba spin-orbit interaction and the spin blockade phenomena between two regions separated by the middle barrier in the TB-RTD. Detailed calculations using the InAlAs/InGaAs material system reveal that a splitting of a peak should be observed in the [Formula presented] curve of this device as a result of the spin-filtering effect. The filtering efficiency exceeds [Formula presented] at the peak positions in the [Formula presented] curve.
Original language | English |
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Pages (from-to) | 4 |
Number of pages | 1 |
Journal | Physical review letters |
Volume | 88 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2002 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy(all)