Corpus ID: 118053101

Quantum Imaging of Topologically Unpaired Spin-Polarized Dirac Fermions

  title={Quantum Imaging of Topologically Unpaired Spin-Polarized Dirac Fermions},
  author={K. Gomes and Wonhee Ko and Warren Mar and Y. Chen and Z. Shen and H. Manoharan},
  • K. Gomes, Wonhee Ko, +3 authors H. Manoharan
  • Published 2009
  • Physics
  • The motion of a relativistic particle is linked to its spin by the Dirac equation. Remarkably, electrons in two-dimensional materials can mimic such Dirac particles but must always appear in pairs of opposite spin chirality. Using topological ideas of chiral boundary electrons wrapping a three-dimensional crystal with tuned spin-orbit coupling, we show that elusive unpaired Dirac fermions exist on the surface of a topological insulator parent matrix, pure antimony. Using scanning tunneling… CONTINUE READING
    Topological insulators and superconductors
    • 5,907
    • PDF