Impurity-induced states on the surface of three-dimensional topological insulators

By R. R. Biswas, Alexander V. Balatsky. 2009

143 citations recorded by the source corpus.

We calculate the modification of the local electronic structure caused by a single local impurity on the surface of a three-dimensional topological insulator. We find that the local density of states around the Dirac point of the electronic spectrum at the surface is significantly disrupted near the impurity by the creation of low-energy resonance state(s)\char22{}however, this is not sufficient to (locally) destroy the Dirac point. We also calculate the nontrivial spin textures created near the magnetic impurities and discover anisotropic Ruderman-Kittel-Kasuya-Yosida (RKKY) coupling between them.

Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/c8769ba1de0ca71522ef8532b7179f40c5e2788f

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. R. Cava
2. Y. Hor
3. A. Yazdani
4. Y. Ando
5. M. Zahid Hasan
6. J. Moore
7. Hsin Lin
8. Arun Bansil

In Condensed Matter Physics

1. R. Cava
2. Y. Hor

In Materials Chemistry

1. R. Cava
2. Y. Hor
3. A. Yazdani
4. Y. Ando
5. M. Zahid Hasan
6. J. Moore
7. Hsin Lin
8. Arun Bansil

Citations in the corpus

• Spatial Fluctuations of Helical Dirac Fermions on the Surface of Topological Insulators (2011, background): “These low-energy scattering patterns are also consistent with the helical spin texture of the topological surface states that still allows all scattering processes other than direct backscatterin”