Andreev Reflection in the Fractional Quantum Hall State
We construct high-quality graphene-based van der Waals devices with narrow superconducting niobium nitride (NbN) electrodes, in which superconductivity and a robust fractional quantum Hall (FQH) state coexist. We find a possible signature for crossed Andreev reflection (CAR) across the superconducto...
Main Authors: | , , , , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
American Physical Society
2022-06-01
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Series: | Physical Review X |
Online Access: | http://doi.org/10.1103/PhysRevX.12.021057 |