Study of spin-polarization and electronic lenses in semiconductor nanodevices
| Title: |
Study of spin-polarization and electronic lenses in semiconductor nanodevices |
| DNr: |
NAISS 2024/22-775 |
| Project Type: |
NAISS Small Compute |
| Principal Investigator: |
Iryna Yakymenko <iryna.yakymenko@liu.se> |
| Affiliation: |
Linköpings universitet |
| Duration: |
2024-06-01 – 2025-06-01 |
| Classification: |
10304 |
| Homepage: |
https://liu.se/en/organisation/liu/ifm/teofy |
| Keywords: |
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Abstract
This project is within the field of semiconductor spintronics that promises realization of spin-based active components for electronic circuits. The objective of the present project, supported by the Carl Trygger Foundation for the years 2022-2024, is to investigate theoretically spin polarization and spin-dependent electron transport through electronic lens embedded in a wide quantum wire (QW) fabricated in GaAs/AlGaAs heterostructure. The experimental setup consists of three quantum point contacts (QPCs), with two of them functioning as spin injectors and the third acting as a spin detector. The main aim of this research is to study the possibility of implementing an electronic lens within a QW with shallow confinement, using an experimentally proposed electron focusing device that incorporates an asymmetrically loaded QPC. Spin-dependent transport through this asymmetrically loaded QPC is tested by the electronic lens and the spin detector QPC.
