Pauli spin blockade with site-dependent g tensors and spin-polarized leads

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Physical Review B. American Physical Society (APS). 2021, 103(24), 245412. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.103.245412
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Pauli spin blockade (PSB) in double quantum dots (DQDs) has matured into a prime technique for precise measurements of nanoscale system parameters. In this work we demonstrate that systems with site-dependent g-tensors and spin-polarized leads allow for a complete characterization of the g-tensors in the dots by magnetotransport experiments alone. Additionally, we show that special polarization configurations can enhance the often elusive magnetotransport signal, rendering the proposed technique robust against noise in the system, and inducing a giant magnetoresistance effect. Finally, we incorporate the effects of the spin-orbit interaction (SOI) and show that in this case the leakage current contains information about the degree of spin polarization in the leads.

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ISO 690MUTTER, Philipp M., Guido BURKARD, 2021. Pauli spin blockade with site-dependent g tensors and spin-polarized leads. In: Physical Review B. American Physical Society (APS). 2021, 103(24), 245412. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.103.245412
BibTex
@article{Mutter2021-03-09T08:54:15ZPauli-53600.2,
  year={2021},
  doi={10.1103/PhysRevB.103.245412},
  title={Pauli spin blockade with site-dependent g tensors and spin-polarized leads},
  number={24},
  volume={103},
  issn={2469-9950},
  journal={Physical Review B},
  author={Mutter, Philipp M. and Burkard, Guido},
  note={Article Number: 245412}
}
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