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E-Mail IMAGE: A team of researchers from Penn State has experimentally demonstrated a quantum phenomenon called the high Chern number quantum anomalous Hall (QAH) effect. They stacked alternating layers of magnetic and. view more Credit: Zhao et al., Nature New energy-efficient electronic devices may be possible thanks to research that demonstrates the quantum anomalous Hall (QAH) effect where an electrical current does not lose energy as it flows along the edges of the material over a broader range of conditions. A team of researchers from Penn State has experimentally realized the QAH effect in a multilayered insulator, essentially producing a multilane highway for the transport of electrons that could increase the speed and efficiency of information transfer without energy loss. ....