Effects of nuclear spins on the transport properties of the edge of two-dimensional topological insulators

  title={Effects of nuclear spins on the transport properties of the edge of two-dimensional topological insulators},
  author={Chen-Hsuan Hsu and Peter Stano and Jelena Klinovaja and Daniel Loss},
  journal={Physical Review B},
The electrons in the edge channels of two-dimensional topological insulators can be described as a helical Tomonaga-Luttinger liquid. They couple to nuclear spins embedded in the host materials through the hyperfine interaction, and are therefore subject to elastic spin-flip backscattering on the nuclear spins. We investigate the nuclear-spin-induced edge resistance due to such backscattering by performing a renormalization-group analysis. Remarkably, the effect of this backscattering mechanism… 

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