The world of condensed-matter physics and optoelectronic devices has recently borne witness to a remarkable discovery that has the potential to revolutionize the technology landscape. A room-temperature nonlinear Hall effect has been observed in polycrystalline thin films of the centrosymmetric elemental material bismuth. This groundbreaking discovery has significant implications for the development of optoelectronic devices and can enable a host of new applications in the terahertz spectral range.

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