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 ins...

Source: [Phys.org](https://phys.org/news/2026-10-carpet-growth-method-yields-sought.html)

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