Spin-resolved spectroscopy using a quantum dot defined in InAs 2DEG

Alisa Danilenko; Andreas Pöschl; Deividas Sabonis; Vasileios Vlachodimitropoulos; Candice Thomas; Michael J. Manfra; Charles M. Marcus

doi:10.1103/PhysRevB.108.054514

Spin-resolved spectroscopy using a quantum dot defined in InAs 2DEG

Mesoscale and Nanoscale Physics 2024-01-12 v2 Superconductivity

Authors: Alisa Danilenko , Andreas Pöschl , Deividas Sabonis , Vasileios Vlachodimitropoulos , Candice Thomas , Michael J. Manfra , Charles M. Marcus

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Abstract

We realize a device, based on InAs two-dimensional electron gas proximitized by superconducting Al, which allows a single quantum dot level to be used as a spectrometer of the density of states in a nanowire. Applying a magnetic field parallel to the plane of the device causes the levels of the dot to split, enabling spin resolved spectroscopy. Using this method, we are able to study the spin and charge polarization of the allowed transport through sub-gap states which form in the nanowire and evolve with varying magnetic field and gate voltage.

Keywords

spin physics in semiconductors magnetic resonance quantum dots

Cite

@article{arxiv.2212.10175,
  title  = {Spin-resolved spectroscopy using a quantum dot defined in InAs 2DEG},
  author = {Alisa Danilenko and Andreas Pöschl and Deividas Sabonis and Vasileios Vlachodimitropoulos and Candice Thomas and Michael J. Manfra and Charles M. Marcus},
  journal= {arXiv preprint arXiv:2212.10175},
  year   = {2024}
}

Spin-resolved spectroscopy using a quantum dot defined in InAs 2DEG

Abstract

Keywords

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