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Andreev scattering and conductance enhancement in mesoscopic semiconductor-superconductor junctions
Niels Asger Mortensen, Antti-Pekka Jauho, Karsten Flensberg
An inherent difficulty in studying mesoscopic effects in semiconductor--superconductor hybrid structures is the large Schottky barrier which often forms at the interface. A large t…
Dephasing in semiconductor-superconductor structures by coupling to a voltage probe
Niels Asger Mortensen, Antti-Pekka Jauho, Karsten Flensberg
We study dephasing in semiconductor-superconductor structures caused by coupling to a voltage probe. We consider structures where the semiconductor consists of two scattering regio…
Contact resistance of quantum tubes
Niels Asger Mortensen, Kristinn Johnsen, Antti-Pekka Jauho +1
We consider the conductance of a quantum tube connected to a metallic contact. The number of angular momentum states that the tube can support depends on the strength of the radial…
Conductance enhancement in quantum point contact-semiconductor-superconductor devices
Niels Asger Mortensen, Antti-Pekka Jauho, Karsten Flensberg +1
We present numerical calculations of the conductance of an interface between a phase-coherent two-dimensional electron gas and a superconductor with a quantum point contact in the…