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arXiv · 1412.0877

Spin-orbit interaction in InSb nanowires

I. van Weperen·B. Tarasinski·D. Eeltink·V. S. Pribiag·S. R. Plissard·E. P. A. M. Bakkers·L. P. Kouwenhoven·M. Wimmer
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Abstract

We use magnetoconductance measurements in dual-gated InSb nanowire devices together with a theoretical analysis of weak antilocalization to accurately extract spin-orbit strength. In particular, we show that magnetoconductance in our three-dimensional wires is very different compared to wires in two-dimensional electron gases. We obtain a large Rashba spin-orbit strength of $0.5 -1\,\text{eVÅ}$ corresponding to a spin-orbit energy of $0.25-1\,\text{meV}$. These values underline the potential of InSb nanowires in the study of Majorana fermions in hybrid semiconductor-superconductor devices.

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I. van Weperen, B. Tarasinski, D. Eeltink, V. S. Pribiag, S. R. Plissard, E. P. A. M. Bakkers, L. P. Kouwenhoven, M. Wimmer. 2015-05-18. Spin-orbit interaction in InSb nanowires. https://doi.org/10.1103/physrevb.91.201413

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