Nonmagnetic control of spin transport in InGaAs quantum wells
作者： Takaaki Koga , Junsaku Nitta , Supriyo Datta
DOI: 10.1016/S1386-9477(02)01065-2
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摘要: Abstract We have studied the Rashba constant values α in In0.52Al0.48As/In0.53Ga0.47As quantum wells (QW), as a function of degree structural inversion asymmetry (SIA), using weak antilocalization analysis. control SIA QWs both by specific sample design and applied gate voltage. The deduced are quantitative agreement with theoretical obtained k · p -type calculation. We, then, propose novel spin-filter device solely based on effect an example devices that utilize spin–orbit coupling effect.
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Takaaki Koga, Junsaku Nitta, Hideaki Takayanagi, Supriyo Datta, Spin-filter device based on the Rashba effect using a nonmagnetic resonant tunneling diode. Physical Review Letters. ,vol. 88, pp. 126601- ,(2002) , 10.1103/PHYSREVLETT.88.126601
Junsaku Nitta, Tatsushi Akazaki, Hideaki Takayanagi, Takaaki Koga, Conditions for the Spin Rectification Phenomena Predicted for Semiconducting Triple Barrier Structures in the Presence of the Rashba Spin-Orbit Coupling Japanese Journal of Applied Physics. ,vol. 41, pp. 2501- 2504 ,(2002) , 10.1143/JJAP.41.2501
Takaaki Koga, Junsaku Nitta, Supriyo Datta, Hideaki Takayanagi, Proposal of a novel spin filter realized in a triple barrier resonant tunnel diode using Rashba spin-orbit interaction MRS Proceedings. ,vol. 690, pp. 123- 128 ,(2001) , 10.1557/PROC-690-F7.2
Takaaki Koga, Junsaku Nitta, Tatsushi Akazaki, Hideaki Takayanagi, Anti-Weak-Localization Study of Rashba Spin-Splitting Energy as a Function of Well Asymmetry in InAlAs/InGaAs/InAlAs Quantum Wells MRS Proceedings. ,vol. 690, pp. 71- 76 ,(2001) , 10.1557/PROC-690-F3.12
Takaaki Koga, Junsaku Nitta, Tatsushi Akazaki, Hideaki Takayanagi, Rashba spin-orbit coupling probed by the weak antilocalization analysis in InAlAs/InGaAs/InAlAs quantum wells as a function of quantum well asymmetry. Physical Review Letters. ,vol. 89, pp. 046801- ,(2002) , 10.1103/PHYSREVLETT.89.046801
Takaaki Koga, Junsaku Nitta, Tatsushi Akazaki, Hideaki Takayanagi, Rashba spin-splitting energies probed by anti-weak-localization analysis in symmetric and asymmetric InGaAs/InAlAs quantum wells Physica E-low-dimensional Systems & Nanostructures. ,vol. 13, pp. 542- 546 ,(2002) , 10.1016/S1386-9477(02)00163-7