Spin-Filter Device Based on the Rashba Effect Using a Nonmagnetic Resonant Tunneling Diode
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概要
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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 I-V curve of this device as a result of the spin-filtering effect. The filtering efficiency exceeds 99.9% at the peak positions in the I-V curve.
著者
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TAKAYANAGI Hideaki
NTT Basic Research Laboratories, NTT Corporation
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Takayanagi Hideaki
Ntt Basic Research Laboratories Ntt Corporation
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