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Researchers at the University of British Columbia have discovered novel topological electronic crystals in twisted layers of graphene, an advancement published in the journal Nature. The study reveals that electrons can establish a highly ordered arrangement, akin to synchronized dancers, while remaining in place, thereby allowing electric current to move smoothly along the material's edges, effectively rendering the center non-conductive.
Joshua Folk, a physics professor and co-author of the study, explained that stacking two layers of graphene with a slight twist created a moiré pattern, transforming electron behavior. This resulted in a unique construct, termed a topological electronic crystal, where stability is maintained irrespective of minor structural imperfections.
The implications of this discovery are significant for future technologies, suggesting potential applications in energy-efficient devices and resilient quantum computing systems. Such topological materials are rare and crucial for robust quantum behavior, offering promising pathways for advancements in electronic technologies.