
Quantum Geometry Drives New Chiral Electron Valve
Researchers have created a novel "chiral fermionic valve" that separates electrons based on their chirality using the quantum geometry of topological bands, eliminating the need for magnetic fields. This innovative device, made from single-crystal PdGa, spatially separates chiral currents with opposite orbital magnetizations, demonstrating quantum interference and opening new possibilities for advanced electronic devices.



















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