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Theory of the topological Anderson insulator
C. W. Groth, M. Wimmer, A. R. Akhmerov +2
We present an effective medium theory that explains the disorder-induced transition into a phase of quantized conductance, discovered in computer simulations of HgTe quantum wells.…
Switching of electrical current by spin precession in the first Landau level of an inverted-gap semiconductor
A. R. Akhmerov, C. W. Groth, J. Tworzydlo +1
We show how the quantum Hall effect in an inverted-gap semiconductor (with electron- and hole-like states at the conduction- and valence-band edges interchanged) can be used to inj…
Maximal positive cross shot noise from Andreev reflection
A. Bednorz, J. Tworzydło, J. Wróbel +1
The current flowing from a superconductor to a two-terminal setup describing a nanostructure connected to normal-metal leads is studied. We provide an example of scattering matrix…
Quantum Goos-Hanchen effect in graphene
C. W. J. Beenakker, R. A. Sepkhanov, A. R. Akhmerov +1
The Goos-Hanchen (GH) effect is an interference effect on total internal reflection at an interface, resulting in a shift sigma of the reflected beam along the interface. We show t…