Transport through Andreev bound states in a Weyl semimetal quantum dot
Dibya Kanti Mukherjee, Sumathi Rao, Arijit Kundu
DOI 10.1103/PhysRevB.96.161408 · Physical Review B
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Abstract
We study transport through a Weyl semimetal quantum dot sandwiched between an s-wave superconductor and a normal lead. The conductance peaks at regular intervals and exhibits double periodicity with respect to two characteristic frequencies of the system, one that originates from Klein tunneling in the system and the other coming from the chiral nature of the excitations. Using a scattering matrix approach as well as a lattice simulation, we demonstrate the universal features of the conductance through the system and discuss the feasibility of observing them in experiments.
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