Unexpected Exciton Mobility at Cryogenic Temperatures: Phasons in Moiré Superlattices
2025-03-28
Researchers at Berkeley Lab have discovered that phasons, low-temperature quasiparticles in moiré superlattices, enable interlayer excitons to move even at extremely low temperatures where motion should cease. This challenges conventional understanding and opens new avenues for improving the stability of quantum technologies by leveraging excitons as qubits. The discovery, made possible by the Molecular Foundry's Imaging and Manipulation of Nanostructures facility, provides fundamental insights into materials science and offers a promising path forward for quantum information science.