Andreev tunneling enhanced by Coulomb oscillations in superconductor-semiconductor hybrid Ge/Si nanowire devices

Article

关键词: CARBON NANOTUBES;    QUANTUM DOTS;    SUPERCURRENT;    GRAPHENE;    JUNCTIONS;   

DOI  :  10.1103/PhysRevB.84.195448

来源: SCIE

【 摘 要 】

We explore the magnetoconductance of Ge/Si core/shell nanowire quantum dot devices contacted by superconducting leads. Significant magnetoconductance peaks around zero field are observed and show a periodic modulation with gate voltage as discrete states of the quantum dot are turned on- and off-resonance with the Fermi energy in the superconducting electrodes. The ability to create and control coherent transport in superconductor-semiconductor hybrid nanostructures allows for new opportunities in the study of various fundamental competing effects such as superconductivity and electron-electron interactions.

【 授权许可】

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