High-Pressure Mg3Cl7 Synthesized in a Diamond Anvil Cell as a Polar Metal with Second-Harmonic Generation - Yuqing Yin; Leonid Dubrovinsky; Ferenc Tasnádi; Igor A. Abrikosov; Andrey Aslandukov; Alena Aslandukova; Fariia Iasmin Akbar; Wenju Zhou; Florian Knoop; Dominique Laniel; Anna Pakhomova; Timofey Fedotenko; et al. (Journal of the American Chemical Society, 2025)