Researchers from Loughborough University have developed a groundbreaking method to fine-tune electron behavior, unlocking the potential of quantum materials like strontium ruthenate (Sr₂RuO₄). By leveraging High-order Van Hove singularities (HOVHS)—points in a material’s electronic structure where energy levels cluster densely—they identified how structural rotations confine these singularities to specific surface regions. This insight enables precise manipulation of electronic and magnetic properties, paving the way for advanced applications, including room-temperature superconductors. Using theoretical and computational models based on the Feynman-Hellmann theorem, the study offers a framework to enhance material performance for quantum computing and other technologies. Published in Nature Communications, this work represents a significant step toward controlling and optimizing quantum materials.
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