Journal
PHYSICAL REVIEW B
Volume 78, Issue 14, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.78.144515
Keywords
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Funding
- Ministry of Science and Education [NN202187833, NN202373333]
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Magnetic field applied to the quantum dot coupled between one metallic and one superconducting electrode can produce a similar effect as has been experimentally observed by Meservey [Phys. Rev. Lett. 25, 1270 (1970)] for the planar normal metal-superconductor junctions. We investigate the tunneling current and show that indeed the square-root singularities of differential conductance exhibit the Zeeman splitting near the gap-edge features V=+/-Delta/e. Since magnetic field affects also the in-gap states of quantum dot, it furthermore imposes a hyperfine structure on the anomalous (subgap) Andreev current which has a crucial importance for a signature of the Kondo resonance.
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