MIT physicists have made a groundbreaking discovery in the field of superconductivity, observing key evidence of unconventional superconductivity in magic-angle graphene. This material, known as MATTG, is a twisted tri-layer graphene structure that exhibits extraordinary properties. Superconductors, like high-speed trains, allow electricity to flow without resistance, making them highly energy-efficient. However, conventional superconductors require extremely low temperatures to function, limiting their applications. Unconventional superconductors, on the other hand, offer the potential for higher operating temperatures, enabling technologies like zero-energy-loss power cables and quantum computing. MIT's research focuses on MATTG, which has previously shown hints of unconventional superconductivity. The team's new study, published in the journal Science, provides the most direct confirmation of this phenomenon. They measured the superconducting gap, a critical property, and found it to be distinct from typical superconductors, indicating an unconventional mechanism for superconductivity in MATTG. This discovery paves the way for further exploration of 2D materials and their potential in future technologies, with the ultimate goal of creating room-temperature superconductors.
