Spin Conductance of Nanowires with Double Coupled Quantum Dots

• Authors: M. Wołoszyn , B. Spisak , P. Wójcik , J. Adamowski
• Languages of publication: EN

Abstracts

EN

Using the computer simulations we have studied the spin conductance of the InAs nanowire with three all-around gates that generate two coupled quantum dots in the nanowire. We have assumed that the same constant voltage is applied to the outermost (left and right) gates and investigated the effect of the varying central-gate voltage (V_{G}) and axially directed magnetic field B on the spin currents. The calculated spin-up and spin-down conductances exhibit pronounced oscillations as functions of V_{G}. In certain intervals of V_{G}, both the spin conductances oscillate in antiphase, which can be applied to the spin-filter operation.

Keywords

EN

72.25.Dc; 73.63.Nm

Discipline

• 72.25.Dc: Spin polarized transport in semiconductors
• 73.63.Nm: Quantum wires

• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 129
• Issue: 1a
• Pages: A-114-A-116

Dates

published

2016-01

Contributors

author

M. Wołoszyn

• AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, al. Mickiewicza 30, 30-059 Kraków, Poland

author

B. Spisak

• AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, al. Mickiewicza 30, 30-059 Kraków, Poland

author

P. Wójcik

• AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, al. Mickiewicza 30, 30-059 Kraków, Poland

author

J. Adamowski

• AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, al. Mickiewicza 30, 30-059 Kraków, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.129.A-114