In recent years, physicists and material scientists have uncovered several new platforms for studying correlated phases of matter, such as superconductivity and the correlated insulator phase. Among them is magic-angle twisted trilayer graphene, a superconductor discovered by a research team at Massachusetts institute of Technology. This material consists of three sheets of graphene stacked together, with a rotational misalignment of approximately 1.5 degrees.
Past studies found that magic-angle twisted trilayer graphene exhibits superconductivity at remarkably high magnetic fields, far higher than those it would be able to endure if it were a conventional superconductor. While the superconductivity of this material is now widely documented, its underpinning physics is not yet fully understood.
Researchers at Brown University have recently carried out a study further investigating superconductivity in twisted trilayer graphene. Their paper, published in Nature Physics, introduces important constraints that could shape existing theoretical models of superconductivity.
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