Andreev Reflection in Strong Magnetic Fields

Details Andreev Reflection in Strong Magnetic Fields Andreev Reflection in Strong Magnetic Fields

1999-09-02

arxiv.org/abs/cond-mat/9909035v2

Phys. Rev. Lett. 84, 1804 (2000)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 3 figures, RevTex, revised to include more detailed discussion of currents and transport

Scientific paper

10.1103/PhysRevLett.84.1804

We have studied the interplay of Andreev reflection and cyclotron motion of quasiparticles at a superconductor-normal-metal interface with a strong magnetic field applied parallel to the interface. Bound states are formed due to the confinement introduced both by the external magnetic field and the superconducting gap. These bound states are a coherent superposition of electron and hole edge excitations similar to those realized in finite quantum-Hall samples. We find the energy spectrum for these Andreev edge states and calculate transport properties.

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