期刊
SCIENCE
卷 352, 期 6288, 页码 966-969出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aad6203
关键词
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资金
- Division of Materials Sciences and Engineering, Office of Basic Energy Sciences, U.S. Department of Energy [DE-SC0002765]
- Fritz London postdoctoral fellowship
- Canon foundation
- Japan Society for the Promotion of Science [26220710]
- [26790008]
- Grants-in-Aid for Scientific Research [26790008, 25107003, 26220710] Funding Source: KAKEN
A promising route for creating topological states and excitations is to combine superconductivity and the quantum Hall (QH) effect. Despite this potential, signatures of superconductivity in the QH regime remain scarce, and a superconducting current through a QH weak link has been challenging to observe. We demonstrate the existence of a distinct supercurrent mechanism in encapsulated graphene samples contacted by superconducting electrodes, in magnetic fields as high as 2 tesla. The observation of a supercurrent in the QH regime marks an important step in the quest for exotic topological excitations, such as Majorana fermions and parafermions, which may find applications in fault-tolerant quantum computing.
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