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(Funded by the National Science Foundation and the U.S. Army Research Office)
In 2018, scientists discovered that two layers of graphene that are twisted one with respect to the other by a very small, well-defined angle show a variety of interesting quantum phases, including superconductivity, magnetism, and insulating behaviors. Now, a team of researchers from MIT and the Weizmann Institute of Science in Israel have discovered that these quantum phases come from a previously unknown high-energy “parent state,” with an unusual breaking of symmetry.
