This study investigates how uniaxial strain impacts the charge-density wave (CDW) and electronic properties of the kagome superconductor CsV₃Sb₅. Using advanced spectroscopic methods, researchers observed that even a slight 1% strain significantly alters the material’s electronic states, tripling the CDW gap and modifying the properties of van Hove singularities (VHS), crucial for superconductivity. Under tensile strain, the energy and curvature of VHS are tuned, enhancing electronic correlations near the Fermi level. These findings demonstrate how strain can serve as a precise tool to manipulate quantum states and highlight its potential for advancing understanding and applications in unconventional superconductors. The research underscores the importance of lattice-electron interactions in tuning material properties for next-generation technologies. Published in Nature Communications, this work opens new avenues for quantum material engineering.
For more details, please continue reading the full article under the following link:
https://www.nature.com/articles/s41467-024-53737-w
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