Kondo lattice on the edge of a two-dimensional topological insulator

  title={Kondo lattice on the edge of a two-dimensional topological insulator},
  author={Joseph Maciejko},
  journal={Physical Review B},
  • J. Maciejko
  • Published 30 March 2012
  • Physics
  • Physical Review B
We revisit the problem of a single quantum impurity on the edge of a two-dimensional time-reversal invariant topological insulator and show that the zero temperature phase diagram contains a large local moment region for antiferromagnetic Kondo coupling which was missed by previous poor man's scaling treatments. The combination of an exact solution at the so-called decoupling point and a renormalization group analysis \`a la Anderson-Yuval-Hamann allows us to access the regime of strong… 

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