AC Response of the Edge States in a Two-Dimensional Topological Insulator Coupled to a Conducting Puddle
arXiv:1801.09892 · doi:10.1002/pssr.201700422
Abstract
We calculate an AC response of the edge states of a two-dimensional topological insulator, which can exchange electrons with a conducting puddle in the bulk of the insulator. This exchange leads to finite corrections to the response of isolated edge states both at low and high frequencies. By comparing these corrections, one may determine the parameters of the puddle.
arXiv comment4 pages, 3 figures
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Cited by in corpus (3)
- Optical properties of helical edge channels in zinc-blende-type topological insulators: Selection rules, circular and linear dichroism, circular and linear photocurrents
- Sub- to Super-Poissonian crossover of current noise in helical edge states coupled to a spin impurity in a magnetic field
- Effects of electron-hole asymmetry on electronic structure of helical edge states in HgTe/HgCdTe quantum wells