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Srinivasan A, Miserev DS, Hudson KL, et al. Detection and Control of Spin-Orbit Interactions in a GaAs Hole Quantum Point Contact. Phys Rev Lett. 2017;118(14):146801doi: 10.1103/PhysRevLett.118.146801.
Srinivasan, A., Miserev, D. S., Hudson, K. L., Klochan, O., Muraki, K., Hirayama, Y., Reuter, D., Wieck, A. D., Sushkov, O. P., & Hamilton, A. R. (2017). Detection and Control of Spin-Orbit Interactions in a GaAs Hole Quantum Point Contact. Physical review letters, 118(14), 146801. https://doi.org/10.1103/PhysRevLett.118.146801
Srinivasan, A, et al. "Detection and Control of Spin-Orbit Interactions in a GaAs Hole Quantum Point Contact." Physical review letters vol. 118,14 (2017): 146801. doi: https://doi.org/10.1103/PhysRevLett.118.146801
Srinivasan A, Miserev DS, Hudson KL, Klochan O, Muraki K, Hirayama Y, Reuter D, Wieck AD, Sushkov OP, Hamilton AR. Detection and Control of Spin-Orbit Interactions in a GaAs Hole Quantum Point Contact. Phys Rev Lett. 2017 Apr 07;118(14):146801. doi: 10.1103/PhysRevLett.118.146801. Epub 2017 Apr 05. PMID: 28430471.
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Phys Rev Lett. 2017 Apr 07;118(14):146801. doi: 10.1103/PhysRevLett.118.146801. Epub 2017 Apr 05.

Detection and Control of Spin-Orbit Interactions in a GaAs Hole Quantum Point Contact.

Physical review letters

A Srinivasan, D S Miserev, K L Hudson, O Klochan, K Muraki, Y Hirayama, D Reuter, A D Wieck, O P Sushkov, A R Hamilton

Affiliations

  1. School of Physics, University of New South Wales, Sydney New South Wales 2052, Australia.
  2. NTT Basic Research Laboratories, NTT corporation, Atsugi-shi, Kanagawa 243-0198, Japan.
  3. Graduate School of Science, Tohoku University, Sendai-shi, Miyagi 980-8578, Japan.
  4. Fachbereich Physik, University of Paderborn, Warburger Straße 100, 33098 Paderborn, Germany.
  5. Angewandte Festkorperphysik, Ruhr-Universität Bochum, D-44780 Bochum, Germany.

PMID: 28430471 DOI: 10.1103/PhysRevLett.118.146801

Abstract

We investigate the relationship between the Zeeman interaction and the inversion-asymmetry-induced spin-orbit interactions (Rashba and Dresselhaus SOIs) in GaAs hole quantum point contacts. The presence of a strong SOI results in the crossing and anticrossing of adjacent spin-split hole subbands in a magnetic field. We demonstrate theoretically and experimentally that the anticrossing energy gap depends on the interplay between the SOI terms and the highly anisotropic hole g tensor and that this interplay can be tuned by selecting the crystal axis along which the current and magnetic field are aligned. Our results constitute the independent detection and control of the Dresselhaus and Rashba SOIs in hole systems, which could be of importance for spintronics and quantum information applications.

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