Spin-Filter Device Based on the Rashba Effect Using a Nonmagnetic Resonant Tunneling Diode

Takaaki Koga; Junsaku Nitta; Hideaki Takayanagi; Supriyo Datta

doi:10.1103/PhysRevLett.88.126601

Spin-Filter Device Based on the Rashba Effect Using a Nonmagnetic Resonant Tunneling Diode

Takaaki Koga, Junsaku Nitta, Hideaki Takayanagi, Supriyo Datta

Research output: Contribution to journal › Article › peer-review

36 Citations (Scopus)

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
Pages (from-to)	4
Number of pages	1
Journal	Physical review letters
Volume	88
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.88.126601
Publication status	Published - 2002
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Spin-Filter Device Based on the Rashba Effect Using a Nonmagnetic Resonant Tunneling Diode",

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.",

author = "Takaaki Koga and Junsaku Nitta and Hideaki Takayanagi and Supriyo Datta",

year = "2002",

doi = "10.1103/PhysRevLett.88.126601",

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T1 - Spin-Filter Device Based on the Rashba Effect Using a Nonmagnetic Resonant Tunneling Diode

AU - Koga, Takaaki

AU - Nitta, Junsaku

AU - Takayanagi, Hideaki

AU - Datta, Supriyo

PY - 2002

Y1 - 2002

N2 - 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.

AB - 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.

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JF - Physical Review Letters

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Spin-Filter Device Based on the Rashba Effect Using a Nonmagnetic Resonant Tunneling Diode

Abstract

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