Physicists have developed a small, compact superconducting quantum interference device (SQUID) that can detect magnetic fields. The team l focused on the instrument's core, which contains two parallel layers of graphene.
The collaborative study was published in the journal Nano Letters by the University of Basel, the University of Budapest, and the National Institute for Material Science in Tsukuba, Japan. The instrument is one of the smallest SQUID ever created.
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