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In materials science and quantum physics, flat bands and correlated behaviors within the "magic angle" twisted bilayer graphene (tBLG) has sparked significant interest, although many of its properties face intense debate. In a new report published in Science Advances, Emilio Codecido and colleagues in the departments of physics and materials science in the U.S. and Japan observed both superconductivity and a Mott-like insulator state in a tBLG device with a twist angle approximating 0.93 degrees. This angle was 15 percent smaller than the magic angle computed (∼ 1.1°) in previous studies. The study revealed the "magic" range of tBLG to be larger than previously expected. The work provided a wealth of new information to decipher the strong quantum phenomena within tBLG devices for applications in quantum physics.

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Category: Science