MIT quantum breakthrough edges toward room-temp superconductors

 MIT quantum breakthrough edges toward room-temp superconductors

MIT scientists uncovered direct evidence of unconventional superconductivity in magic-angle graphene by observing a distinctive V-shaped energy gap. The discovery hints that electron pairing in this material may arise from strong electronic interactions instead of lattice vibrations.
Physicists use a new platform to measure magic-angle graphene’s superconducting gap. The method involves “tunneling” electrons between two layers of magic-angle twisted tri-layer graphene (in yellow) while measuring the material’s superconducting state. The team’s experiments are the first to show clear evidence that MATTG is an unconventional superconductor. Credit: Pablo Jarillo-Herrero, et al. However, these "conventional" superconductors only operate at extremely cold temperatures. They must be kept in specialized cooling systems to remain in their superconducting state. If materials could superconduct at warmer, more practical temperatures, they could transform modern technology -- from creating energy grids that waste no power to enabling more functional quantum computers. To reach that goal, researchers at MIT and other institutions are exploring "unconventional" superconductors, materials that defy the rules of traditional ones and may lead to the next big breakthrough.

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