'Carpet' growth method yields long-sought 2D quantum material
Researchers at the University of Chicago have successfully created a 2D topological insulator using a 'carpet' growth method with bismuth telluride. This material allows electrons to travel with minimal energy loss, potentially revolutionizing future electronic components.
Why it matters
This breakthrough in condensed matter physics could lead to more energy-efficient electronics and advancements in quantum computing.
by Sarah C.P. Williams, University of Chicago
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Add to Preferred Sources Visual abstract. Credit: ACS Nano (2026). DOI: 10.1021/acsnano.6c10210 For decades, physicists have sought a practical two-dimensional topological insulator: an ultrathin material whose interior blocks electricity but whose edges conduct it. In ordinary wires, electrons constantly bounce off imperfections, losing energy. But along the edges of a 2D topological insulator, electrons with opposite spins travel in opposite directions, like cars in one-way lanes, so they rarely scatter and lose energy.
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