The study of contact properties in edge-contacted graphene-aluminum Josephson junctions

Zhujun Huang, Neda Lotfizadeh, Bassel H. Elfeky, Kim Kisslinger, Edoardo Cuniberto, Peng Yu, Mehdi Hatefipour, Takashi Taniguchi, Kenji Watanabe, Javad Shabani, Davood Shahrjerdi

Research output: Contribution to journalArticlepeer-review


Transparent contact interfaces in superconductor-graphene hybrid systems are critical for realizing superconducting quantum applications. Here, we examine the effect of the edge contact fabrication process on the transparency of the superconducting aluminum-graphene junction. We show significant improvement in the transparency of our superconductor-graphene junctions by promoting the chemical component of the edge contact etch process. Our results compare favorably with state-of-the-art graphene Josephson junctions. The findings of our study contribute to advancing the fabrication knowledge of edge-contacted superconductor-graphene junctions.

Original languageEnglish (US)
Article number243503
JournalApplied Physics Letters
Issue number24
StatePublished - Dec 12 2022

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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